Aleksiejuk, Elżbieta. “The Critique of Vasily Zenkovsky (1881–1962) on Pedagogical Naturalism”. Paedagogia Christiana 53, no. 1 (September 15, 2024): 139–154. Accessed June 29, 2025. https://apcz.umk.pl/PCh/article/view/55188.