Bērtule, Dace, and Dace Namsone. “COGNITIVE DEPTH OF TEACHING AND LEARNING PROCESS IN BIOLOGY FROM 7TH TILL 9TH GRADE”. SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference 2 (May 25, 2018): 54–62. Accessed December 4, 2024. https://journals.ru.lv/index.php/SIE/article/view/3224.