Badakhshan Toroghi, E., Soleimanpour Omran, M. and Fazlli, R. (2022) “Validation of a Model for the Quality of Education in Multi-Grade Classrooms in Primary Schools”, Iranian Journal of Educational Sociology, 5(4), pp. 43–54. Available at: https://qijes.com/index.php/ijes/article/view/1104 (Accessed: 9 June 2025).