Tyrina , M., N. Zavalko, S. Sakhariyeva, and N. Radchenko. “DEVELOPMENT OF COMMUNICATION SKILLS OF PRESCHOOL CHILDREN IN WALDORF EDUCATION”. Bulletin of Psychology and Pedagogy of Altai State University, Vol. 3, no. 4, Nov. 2021, pp. 177-88, https://bppasu.ru/article/view/10625.