DEIMANTE-HARTMANE, Dagnija. Systemic Approach to the Development of Independent English Study Skills in Upper-Secondary School. SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference, Rezekne, Latvia, v. 1, p. 39–46, 2015. DOI: 10.17770/sie2012vol1.17. Disponível em: https://journals.rta.lv/index.php/SIE/article/view/17.. Acesso em: 2 may. 2024.