Ayuk Elizabeth Orock, A. B. Fonge, E. M. Shemang, M. Zhai, and C. E. Suh. “Lichen Species As Bio-Accumulator of Some Halogens on Mount Cameroon Valcano, West Africa”. Global Journal of Human-Social Science 22, no. B4 (January 20, 2023): 19–35. Accessed October 10, 2024. https://socialscienceresearch.org/index.php/GJHSS/article/view/103574.