TY - BOOK AU - Koti, M. Athar Khan TI - Educational research and statistics, code 507 U1 - 370.72 PY - 1990/// CY - Islamabad PB - Allama Iqbal Open University KW - Education-Research N1 - Block I, units 1-5; Block II, units 6-8; Block III, units 9-12; Block IV, units 13-15 ER -