Левкова, Е.А, И.П Логинов, В.И Киселев, and С.З Савин. “System Analysis in the Ethnonarcological Researches of the Amur Region”. Power and Administration in the East of Russia 8, no. 4 (October 15, 2015). Accessed November 7, 2026. https://vlast-dv.owebs.ru/article/view/17744.