COVID-19 CRISIS ERA; ENGINEERING INTERVENTIONS IN SUB-SAHARAN AFRICA. Nigerian Journal of Technology, [S. l.], v. 42, n. 3, p. 389–398, 2023. DOI: 10.4314/njt.v42i3.12. Disponível em: https://nijotech.com/index.php/nijotech/article/view/3146. Acesso em: 16 apr. 2026.