B. Lombe and E. Mwenda, “Evaluating the effect of internal control systems on organizational performance in Zambia’s mining sector: Evidence from Konkola Copper Mines, Chingola”, Afr. Quarterly S.S. Review, vol. 3, no. 3, pp. 62–76, Jul. 2026, doi: 10.51867/AQSSR.3.3.6.