CAKULA, Sarma. PRODUCTIVITY OF STUDYING PROCESS USING IT. ENVIRONMENT. TECHNOLOGIES. RESOURCES. Proceedings of the International Scientific and Practical Conference, Rezekne, Latvia, v. 1, p. 250–256, 2001. DOI: 10.17770/etr2001vol1.1923. Disponível em: https://journals23.rta.lv/index.php/ETR/article/view/1923.. Acesso em: 4 dec. 2024.