ScienceDirect

As the worlds leading publisher of science and health information (STM), Elsevier has served more than 30 million scientists, students, and health and information professionals worldwide in past 180 years.
ScienceDirect system, a core production of Elsevier, has been providing full-text online service of e-journal for users since 1999. The service includes more than 2,200 peer-reviewed journals and 2,000 series of books, manual and reference books, which focus on physics and engineering, life science, healthcare science, humanity and social science.