KotlіarchukНalyna. “The Mutual Relation in the Effective Cooperation Between Natural Environment and Pupils’ Attitude to It in the Creative Heritage of V. Sukhomlynskyi”. Pedagogical Discourse0, no. 20 (May 12, 2016): 88-91. Accessed September 25, 2021. https://ojs.kgpa.km.ua/index.php/peddiscourse/article/view/63.