Keleş , Oğuz, and Tuğba Emiroğlu. “The Scale of Determining the Problem Behaviors of Children in Preschool Period: A Validity and Reliability Study”. Psycho-Educational Research Reviews 10, no. 3 (December 10, 2021): 350–361. Accessed May 1, 2024. https://perrjournal.com/index.php/perrjournal/article/view/31.