ijoc.orgの競合サイトトップ10

journals.sagepub.com

subscription and open access journals from sage publishing, the world's leading independent academic publisher.

jstor.org

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

taylorfrancis.com

Stop poverty in all its forms. Eradicate extreme poverty for all people everywhere. Reduce at least by half the proportion of men, women and children of all

tandfonline.com

search and explore the millions of quality, peer-reviewed journal articles published under the taylor & francis and routledge imprints.

semanticscholar.org

Learn how to use semanticscholar.org with these short tutorials.

cambridge.org

We unlock the potential of millions of people. Our qualifications, assessments, academic publications and original research spread knowledge and spark enquiry.

link.springer.com

providing access to millions of research articles and chapters from science, technology and medicine, and humanities and social sciences

mdpi.com

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

researchgate.net

Access 160+ million publication pages and connect with 25+ million researchers. Join for free and gain visibility by uploading your research.

proquest.com

proquest powers research in academic, corporate, government, public and school libraries around the world with unique content. explore millions of resources from scholarly journals, books, newspapers, videos and more.