MARZANO, Gilberto; LUBKINA, Velta; SIGUENCIA, Luis Ochoa. KEY ISSUES IN ADULT NON FORMAL PARTICIPATORY E-LEARNING. SOCIETY. INTEGRATION. EDUCATION. Proceedings of the International Scientific Conference, Rezekne, Latvia, v. 4, p. 69–79, 2016. DOI: 10.17770/sie2016vol4.1540. Disponível em: https://archive-journals.rtu.lv/sie/article/view/1380.. Acesso em: 11 mar. 2026.