YASEEN, A. .; ASAAD, M. . . Difficulties of the physical Educational Environment Facing the Teaching of Biology and Land Curriculum From the point of view of the Subject Teachers (A Field Study in basic education schools a second cycle in Lattakia city). Tishreen University Journal- Arts and Humanities Sciences Series, [S. l.], v. 41, n. 5, 2019. Disponível em: https://journal.tishreen.edu.sy/index.php/humlitr/article/view/9190. Acesso em: 17 may. 2024.