OGUNODE NIYI JACOB. An investigation into the challenges facing the planning of manpower. International Journal on Integrated Education, [S. l.], v. 3, n. 7, p. 100–110, 2020. DOI: 10.31149/ijie.v3i7.500. Disponível em: https://journals.researchparks.org/index.php/IJIE/article/view/500. Acesso em: 17 oct. 2026.