NYANDWI , N. .; KANGWE, J. W. . Ecological and engineering importance of the Bet el Ras beach-sandstone . Tanzania Journal of Science, [S. l.], v. 32, n. 2, p. 117–124, 2021. Disponível em: https://tjs.udsm.ac.tz/index.php/tjs/article/view/610. Acesso em: 29 apr. 2024.