AL-HASSAN, Esam Edris Kamtor; OSMAN, Hassan Ja'afar Mohammed. The degree of possession and practice of class teachers studying at the Open University of Sudan for the cognitive, skills and technological teaching competencies. Journal of Educational and Psychological Sciences, New Mexico, United States, v. 5, n. 18, p. 78–51, 2021. DOI: 10.26389/AJSRP.K130121. Disponível em: https://www.ajsrp.ojsexpert.com/index.php/jeps/article/view/3637. Acesso em: 20 dec. 2025.