TY - BOOK AU - De Silva, Gamini TI - Application of human resource planning principles in controlling the non sampling error in sample surveys: a model for a comprehensive approach to development of statistical activities conducted by the department of census and statistics SN - 9555771480 U1 - B0412 CY - Colombo PB - Department of census and statistics KW - BOOKS BOX 412 KW - G.C.E O/L KW - TRAINING AND DEVELOPMENT ER -