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://archive-journals.rtu.lv/sie/article/view/698.. Acesso em: 11 mar. 2026.