LEONIDOVNA, Vlasova Elena, and Ustyantseva Olga VLADIMIROVNA. “Role of the Non-State Sector in Environmental Education for the Protection of Marine Mammal”. Iranian Journal of Ichthyology 8 (May 14, 2021): 62–67. Accessed June 25, 2026. http://ijichthyol.org/index.php/iji/article/view/01009.