PTAK, Paweł. SIMULATION PROGRAMS IN DISTANCE LEARNING. SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference, Rezekne, Latvia, v. 5, p. 436–447, 2021. DOI: 10.17770/sie2021vol5.6305. Disponível em: https://archive-journals.rtu.lv/sie/article/view/2967.. Acesso em: 11 mar. 2026.