Polovnikov, Vadym, Serhii Khalymon, Anatolii Komziuk, y Volodymyr Kopanchuk. «Social Issues of the State Border Guard Service of Ukraine Personnel Management». Amazonia Investiga 9, no. 29 (mayo 18, 2020): 395–406. Accedido noviembre 28, 2025. https://www.amazoniainvestiga.info/index.php/amazonia/article/view/1303.