DETERMINATION OF BACKPACK MASS LIMIT FOR STUDENTS IN A UNIVERSITY IN ABEOKUTA, SOUTHWESTERN NIGERIA. Journal of Engineering Studies and Research, [S. l.], v. 22, n. 4, p. 22–28, 2016. DOI: 10.29081/jesr.v22i4.94. Disponível em: https://jesr.ub.ro/journal/article/view/94. Acesso em: 14 sep. 2025.