ROMERO OSPINA, Fernando Arturo. The challenges of teaching and learning, in times of pandemic, in a multigrade school in Colombia. Ciencia e Interculturalidad, [S. l.], v. 32, n. 01, p. 9–22, 2022. DOI: 10.5377/rci.v32i01.16232. Disponível em: https://www.camjol.info/index.php/RCI/article/view/16232. Acesso em: 6 dec. 2025.