Yecho, Jacob I., Elizabeth I. Yecho, and Thaddeus T. tyonzughul. “Quarry Economics and Community Development in Mbajôv, Southern Tivland, 1960-2017”. Covenant Journal of Entrepreneurship 5, no. 2 (February 1, 2022). Accessed May 6, 2024. https://journals.covenantuniversity.edu.ng/index.php/cjoe/article/view/2850.