Guevara Altamirano, C. M., & Quintana Salgado, L. A. (2016). Evaluation of the implementation of virtual classroom in two curricular components electives of the Faculty of Dentistry, UNAN-León II semester 2015. Universitas (León) , 7(2), 19–25. https://doi.org/10.5377/universitas.v7i2.13869