MALAHOVA, Ludmila; BOGE, Iveta. FOREIGN LANGUAGE LEARNING IN OPTIONAL STUDY COURSES AT LASE. SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference, Rezekne, Latvia, v. 3, p. 615–624, 2017. DOI: 10.17770/sie2017vol3.2267. Disponível em: https://journals.rta.lv/index.php/SIE/article/view/2267.. Acesso em: 4 may. 2024.