Iakovleva, Elena N. “Psychological and Pedagogical Foundation of Work With Problem Solving Situations As a Means of Forming Universal Educational Activities Among Elementary School Children”. International Journal of Psychosocial Rehabilitation 24, no. 4 (June 30, 2020): 6271–6281. Accessed May 25, 2025. https://psychosocial.com/index.php/ijpr/article/view/5589.