DEJENE, W.; MAMO, D. Enhancing Teaching Effectiveness through Professional Training:: Evidence from the Higher Diploma Program in Eastern Ethiopian Universities. Harla Journal of Social and Behavioral Studies, [S. l.], v. 2, n. 2, p. 38–63, 2023. DOI: 10.20372/hjsbs.v2i2.196. Disponível em: http://journals.ddu.edu.et/index.php/HJSBS/article/view/196. Acesso em: 8 dec. 2025.