FALLENBACH, H.; LEMPP, W.; STOMER, K.P. Materials Testing and Consultancy for the Tanzanian Industry. Tanzania Journal of Engineering and Technology, [S. l.], v. 4, n. 2, p. 65–66, 1979. DOI: 10.52339/tjet.v4i2.52. Disponível em: https://tjet.udsm.ac.tz/index.php/tjet/article/view/52. Acesso em: 15 dec. 2025.