EVALUATING THE QUALITY OF E-LEARNING MATERIAL. ENVIRONMENT. TECHNOLOGY. RESOURCES. Proceedings of the International Scientific and Practical Conference, [S. l.], v. 2, p. 74–77, 2017. DOI: 10.17770/etr2017vol2.2557. Disponível em: https://archive-journals.rtu.lv/etr/article/view/4071.. Acesso em: 11 mar. 2026.