Springer Nature eBooks contain 21 subject packages in Chemistry & Materials, Computing, Energy, Intelligent Technology & Robotics, Earth & Environment, Engineering, Mathematics & St

Taylor & Francis eBooks hosts a range of award-winning digital resources, covering all major subject areas and sub-disciplines.

Database Introduction：

Founded in the United States in 1807, Wiley is a globally recognised publisher with a history of more than 200 years of providing essential knowledge and services to professionals, researchers, edu

World Scientific Publishing Company (WSPC) was established in Singapore and is now the largest English-language scientific publisher in the Asia–Pacific region and one of the world’s leading STM pu

中文在线（www.ChineseAll.com）2000年成立于清华大学，是中国网络出版的开创者之一，为国内最领先的正版数字内容传播机构。