3S. Sutton. Future Service Models and the Convergence of Functions: the Reference Librarian as Technician, Author and Consultant [M] // K. Lowed. The Roles of Reference Librarians. Today and Tomorrow. Haworth Press. New York. 1996.
4[美]Shaft Lawrence Pfleeger,[加]Jomne M.Atlee.软件工程[M].北京:人民邮电出版社,2007.
