DAVTYAN, Nelli. APPLICATION OF THE PRINCIPLE OF SYSTEMICITY AS A MEANS OF INCREASING THE EFFECTIVENESS OF TEACHING IN BIOLOGY COURSES. Main Issues Of Pedagogy And Psychology, [S. l.], v. 12, n. 2, p. 30–37, 2026. DOI: 10.24234/miopap.v12i2.103. Disponível em: https://miopap.aspu.am/index.php/miopap/article/view/103. Acesso em: 27 jan. 2026.