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ScienceDirect is the world's leading source for scientific, technical, and medical research. Explore journals, books and articles.

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The world’s largest collection of open access research papers

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Springer - Our business is publishing. Throughout the world, we provide scientific and professional communities with superior specialist information;

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Homepage | Wiley.

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Search and explore the millions of quality, peer-reviewed journal articles published under the Taylor & Francis and Routledge imprints.

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Lumen Learning | Open for student success.

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Quizlet makes simple learning tools that let you study anything. start learning today with flashcards, games and learning tools — all for free.

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Official website of the National Institutes of Health (NIH). NIH is one of the world's foremost medical research centers. An agency of the U.S. Department of Health and Human Services, the NIH is the Federal focal point for health and medical research. The NIH website offers health information for the public, scientists, researchers, medical professionals, patients, educators,

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Take online courses on Study.com that are fun and engaging. Pass exams to earn real college credit. Research schools and degrees to further your education.

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JSTOR is a digital library of academic journals, books, and primary sources.

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Neliti - Indonesia's Research Repository.

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Diigo is a powerful research tool and a knowledge-sharing community

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Scoop.it enables professionals and businesses to research and publish content through its content curation tool.

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Elsevier is a global information analytics business that helps institutions and professionals progress science, advance healthcare and improve performance.

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Attention Required! | Cloudflare.

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Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more. Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere.

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Internet archive is a non-profit digital library offering free universal access to books, movies & music, as well as 468 billion archived web pages.

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Take a photo of your homework question and get answers, math solvers, explanations, and videos. Works for Math, Science, History, English, and more.

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Your life, on the line - Plurk.

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Pearltrees is a place to organize everything you’re interested in. It lets you organize, explore and share everything you like.

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A simple tool for saving web pages to read later on your iPhone, iPad, Android, computer, or Kindle.

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We're committed to being your source for expert health guidance. Come to us in your pursuit of wellness.

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The leading source for trustworthy and timely health and medical news and information. Providing credible health information, supportive community, and educational services by blending award-winning expertise in content, community services, expert commentary, and medical review.

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Mix · Learn More.

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BC Open Textbooks – Open Textbooks Adapted and Created by BC Faculty.

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LibreTexts is developing the next generation of open-access texts. Open. Free. Accessible to all.

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Welcome to www.uny.ac.id | www.uny.ac.id.

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Beranda | Universitas Muhammadiyah Surakarta.

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Audit your website, explore competitors, research keywords & backlinks - all in one place. Powered by seriously big data & trusted by top SEOs.

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MDPI is a publisher of peer-reviewed, open access journals since its establishment in 1996.

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Math explained in easy language, plus puzzles, games, worksheets and an illustrated dictionary. For K-12 kids, teachers and parents.

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Free step-by-step solutions to millions of textbook and homework questions! - Slader

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Open source software which you can use to easily create a beautiful website, blog, or app.

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SemRush.com