Marta, S. A., S. Suparno, U. Usmeldi, and D. R. Apriyus. “Development of Computer Learning and Basic Network E-Modules”. Jurnal Pendidikan Teknologi Kejuruan, vol. 3, no. 1, Feb. 2020, pp. 45-49, doi:10.24036/jptk.v3i1.4023.