BĒRZIŅŠ, Andris. Qualitative Development of Construction Student’s Attitude in Ecological Teaching and Learning Process. SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference, Rezekne, Latvia, v. 1, p. 217–227, 2015. DOI: 10.17770/sie2012vol1.42. Disponível em: https://journals.rta.lv/index.php/SIE/article/view/42.. Acesso em: 7 may. 2024.