Mebratu AA, Leykun F, Lakehal-Ayat M. Determinant of Tax Revenue Effort in Sub-Saharan African Countries: A Stochastic Frontier Analysis. 26 [Internet]. 2020 May 29 [cited 2024 Nov. 25];9(1):47-71. Available from: https://archive.conscientiabeam.com/index.php/26/article/view/2070