MBWANDO, M. K. Technical Problems and Progress In Tanzania. Tanzania Journal of Engineering and Technology, [S. l.], v. 2, n. 1, p. 71, 1985. DOI: 10.52339/tjet.v2i1.34. Disponível em: https://tjet.udsm.ac.tz/index.php/tjet/article/view/34. Acesso em: 19 apr. 2025.