Ivanova, Vanya. “MULTIMEDIA PRESENTATIONS AND TEACHING ABOUT THE WORLD AROUND US, MAN AND NATURE, AND MAN AND SOCIETY IN GRADES 1 - 4”. Proceedings of CBU in Social Sciences 2 (October 24, 2021): 161-166. Accessed November 5, 2026. https://ojs.cbuic.cz/index.php/pss/article/view/216.