Gashaw, Tesfa, Tesfaw Getnet, and Wubshet Bethlehem. “Littering Attitude, Belief, and Practice of Students at Addis Ababa University: Qualitative Exploration”. Ethiopian Journal Of Behavioural Studies 5, no. 2 (April 10, 2023): 1–34. Accessed June 30, 2025. https://ejol.aau.edu.et/index.php/ejobs/article/view/7739.