Firmansyah, F. et al. 2019. Analisis Performa Site to Site IP Security Virtual Private Network (VPN) Menggunakan Algoritma Enkripsi ISAKMP. JUITA: Jurnal Informatika. 7, 2 (Nov. 2019), 129–135. DOI:https://doi.org/10.30595/juita.v7i2.4491.