Ndip, Edwin Ayuk, and Josephine Maximus. “Exploring the Potential of Black Shale Source Rocks in the Babouri-Figuil Basin, Northern Cameroon: A Study on Organic Petrography”. European Journal of Applied Sciences 11, no. 5 (October 27, 2023): 304–317. Accessed May 30, 2026. https://scholarpublishing.org/journals/index.php/EJAS/article/view/8611.