Hirniak, Andriy. “Detailing of the Psychological-Pedagogical Content of Modular-Developmental Interaction Stages”. Psyhology & society, no. 3-4 (March 4, 2019): 146–153. Accessed November 23, 2024. https://pis.wunu.edu.ua/index.php/enpis/article/view/1005.