Yusuf, A. K., A. H. . Hendrawan, and Y. . Afrianto. “Building Virtual Private Server In Net-Centric Computing Laboratory”. Jurnal Teknik Informatika C.I.T Medicom, vol. 11, no. 2, Sept. 2019, pp. 59-65, doi:10.35335/cit.Vol11.2019.14.pp59-65.