Tohir, T., Wasliman, I., Iriantara, Y. and Sauri, S. 2021. Multimedia based learning in the basic lessons of electricity and electronics to improve SMK student competency. International journal of business, economics & management. 4, 1 (May 2021), 219-224. DOI:https://doi.org/10.31295/ijbem.v4n1.1522.