Macheyeki, Athanas S. “Petrographic and Geochemical Characteristics of The Kiejo, Rungwe and Ngozi Volcanic Rocks, Southern Tanzania: Implication for Tectonic Activities and Magmatic Differentiation”. Tanzania Journal of Science 42, no. 1 (April 17, 2021): 63–83. Accessed April 29, 2024. https://tjs.udsm.ac.tz/index.php/tjs/article/view/288.