Muzuka , A. “Stable Isotope Compositions of Organic Carbon and Contents of Organic Carbon and Nitrogen of Lacustrine Sediments from Sub-Arid Northern Tanzania”. Tanzania Journal of Science, vol. 32, no. 1, Apr. 2021, pp. 61-74, https://tjs.udsm.ac.tz/index.php/tjs/article/view/574.