Черноватий, Леонід Миколайович, and Наталя Миколаївна Ковальчук. “Thematic Classification of English Abbreviations for Language Teaching Organizations. Introduction”. The Journal of V.N. Karazin Kharkiv National University. Series: Foreign Philology. Methods of Foreign Language Teaching, no. 91 (June 26, 2020). Accessed December 6, 2025. https://periodicals.karazin.ua/foreignphilology/article/view/15871.