Sasikala, C., and K. R. Patnaik. “IMPROVING THE EXISTING INFORMATION FACILITY IN SPECIAL LIBRARIES IN VISAKHAPATNAM USING A MARKETING APPROACH”. Malaysian Journal of Library and Information Science, vol. 4, no. 2, Dec. 1999, pp. 59-72, http://mjlis.um.edu.my/index.php/MJLIS/article/view/6815.