Шумілова, А. В. 2016. “FORMATION OF ECOLOGICAL CONSCIOUSNESS OF SCHOOLBOYS ENVIRONMENTALLY EDUCATIONAL ACTIVITIES SPE «SLOBOZHANSKIY»”. Visnyk of V. N. Karazin Kharkiv National University Series «Еcоlogy», April, 104-11. https://periodicals.karazin.ua/ecology/article/view/5545.