Mehrafza, Mehrnaz, et al. “The Effectiveness of Cognitive-Behavioral Play Therapy on the Aggression and Anxiety of Mentally Retarded Students”. Applied Family Therapy Journal (AFTJ) , vol. 3, no. 3, Sept. 2022, pp. 192-10, https://doi.org/10.61838/kman.aftj.3.3.12.