N. V. Kulalaieva, “Increase of environmental competence of teachers of professional and technical schools of the contruction profile”, Журнал Белорусского государственного университета. Экология, no. 1, pp. 15–23, May 2018, Accessed: Jul. 17, 2026. [Online]. Available: https://journals.bsu.by/index.php/ecology/article/view/2622