Oxford University Press (OUP) publishes the highest quality journals and delivers this research to the widest possible audience. (Full Text dapat akses sampai dengan September 2013)
ProQuest is a resource of electronic collections containing millions of documents originally published in magazines, newspapers, and journals. You can search these collections for documents on subject that interest you or that will help with your research or school work.
A company that delivers highly-customized learning solutions for universities, instructors, students, libraries, government agencies, corporations, and professionals worldwide
Providing researchers with access to millions of scientific documents from journals, books, series, protocols and reference works.
The world’s leading journal of original scientific research, global news, and commentary. In this section we offer some basic information specific to the magazine and its Web content. (Full text dapat diakses sampai dengan Maret 2013)