Berdnik P. BILINGUAL APPROACH TO FOREIGN STUDENTS MATH TEACHING IN THE KHARKIV NATIONAL UNIVERSITY NAMED AFTER V.N. KARAZIN. A.I.S. [Internet]. 2019Jul.8 [cited 2024May4];3(2):104-8. Available from: http://ais.khpi.edu.ua/article/view/2522-9052.2019.2.18