Amanuel, . G., and . G. Mulugeta. “A Multidimensional Analysis of Student Evaluations of College English Instruction: An Application of Nonparametric Methods”. The Ethiopian Journal of Education, vol. 23, no. 1, Dec. 2024, pp. 1-30, http://ejol.aau.edu.et/index.php/EJE/article/view/10930.