ISMAILA, SALAMI OLASUNKANMI. “DETERMINATION OF BACKPACK MASS LIMIT FOR STUDENTS IN A UNIVERSITY IN ABEOKUTA, SOUTHWESTERN NIGERIA”. Journal of Engineering Studies and Research 22, no. 4 (December 14, 2016): 22-28. Accessed June 6, 2020. http://jesr.ub.ro/1/article/view/94.