Abel, Sanderson, Alex Bara, and Pierre Le Roux. “Evaluating Bank Cost Efficiency Using Stochastic Frontier Analysis”. Journal of Economics and Behavioral Studies 11, no. 3(J) (July 18, 2019): 48–57. Accessed October 25, 2026. https://amhinternational.com/jebs/article/view/3409-evaluating-bank-cost-efficiency-using-stochastic-frontier-analysis.