Гусар, О. А. “Problems of Legal Regulation of Bilingualism in UKRAINE”. Scientific works of Kyiv Aviation Institute. Series Law Journal "Air and Space Law" 2, no. 3 (September 26, 2007): 62–66. Accessed December 12, 2025. https://jrnl.nau.edu.ua/index.php/UV/article/view/11597.