Sabadin Santos T. Medina, Joao Paulo, and Ekaterina Budnik. “THE ACQUISITION OF RUSSIAN GRAMMAR CASES BY BRAZILIAN STUDENTS”. SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference 5 (May 28, 2021): 573–581. Accessed November 23, 2024. https://journals.ru.lv/index.php/SIE/article/view/6198.