Grigoryan, Angin, and Gayane Ayvazyan. “PLANNING AS AN EFFECTIVE MEANS OF ORGANIZING AND CONDUCTING AN INTEGRATED LESSON IN SUBJECTS OF THE NATURAL SCIENCE CYCLE”. Education in the 21st Century 9, no. 1 (June 23, 2023): 90–101. Accessed May 20, 2024. https://journals.ysu.am/index.php/Educ-21st-Century/article/view/10309.