Tesema Guta, Berhanu. “Comparative Study of Factors Affecting the Performances of Soccer Referees: The Case of Oromia Soccer Higher League”. International Journal of Academic Research in Progressive Education and Development 9, no. 4 (December 30, 2020). Accessed October 14, 2025. https://ijarped.com/index.php/journal/article/view/2274.