Ranjbar, Mokhtar, and Zeynab Pasalar. “Study the Effect of Educational Groups’ Activities on Knowledge and Continuous Development of Competencies and Empowerment of Professional Teachers in Parsian Department of Education”. IJRDO- Journal of Educational Research 2, no. 7 (July 31, 2017): 12-23. Accessed May 7, 2024. https://ijrdo.org/index.php/er/article/view/253.