OKAGBARE, Freedom, P. A.U. Ossai, Publishing PUO. ASSESSMENT OF DIFFERENTIAL ITEM FUNCTIONING IN PHYSICS MULTIPLE CHOICE USED BY WAEC AMONG SENIOR SECONDARY SCHOOL STUDENTS IN DELTA STATE. WAJIR. 2023;1(2):1-20. Accessed October 13, 2024. https://www.openjournals.ijaar.org/index.php/wajir/article/view/32