“Determination of Work Index of Filin Kokuwa Gold Deposit in Toro Local Government, Bauchi State Nigeria”, NIJOTECH, vol. 40, no. 3, pp. 387–392, Jun. 2021, Accessed: Apr. 28, 2026. [Online]. Available: https://www.nijotech.com/index.php/nijotech/article/view/2581