Abbaspour, Abbas, Pourkarimi, Javad, Rahimian, Hamid, Elzami, Esmat, Khorsandi Taskoh, Ali (2021). In Search of an Effective Framework for the Professional Development of Primary School Principals. * Quarterly Journal of Training and Development of Human Resources*, 8(30), 109-133. 10.52547/istd.31395.8.30.109