Llerena M, Arévalo C, Arévalo M, Moreira A. The incidence of virtual education in the academic performance of students of the chair of economics of natural resources and environment. cna [Internet]. 2022 Dec. 10 [cited 2024 Oct. 28];16(2). Available from: https://revistas.ug.edu.ec/index.php/cna/article/view/1257