Pradun, Inna, and Natalia Shlat. “THE CONDITIONS OF FORMING ACTIONS WITH SUBJECTS AND MATERIALS IN EARLY CHILDHOOD”. SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference 2 (May 21, 2019): 565–576. Accessed December 4, 2024. https://journals.ru.lv/index.php/SIE/article/view/3763.