Valencia-Angulo, P., García-Herrera, D., Mena-Clerque, S. and Erazo-Álvarez, J. 2020. Virtualbox as a teaching-learning strategy in the technical support subject. CIENCIAMATRIA. 6, 3 (Nov. 2020), 498-519. DOI:https://doi.org/10.35381/cm.v6i3.412.