Syahputra, E. R.; Oktaviana Sembing, B.; Rafika Dewi, A.; Hasdiana, H.; Maulana, H. Ads Block Management System Using Open Virtual Private Network on Ubuntu Operating System. IJET 2018, 7 (2.5), 58-61. https://doi.org/10.14419/ijet.v7i2.5.13951.