Черноватий, Л. М., and Н. М. Ковальчук. “Thematic Classification of English Abbreviations for Approaches to Language Teaching and Its Organizational Forms”. The Journal of V.N. Karazin Kharkiv National University. Series: Foreign Philology. Methods of Foreign Language Teaching, no. 92, May 2021, pp. 129-37, doi:10.26565/2227-8877-2020-92-18.