Wina, W. A.; Muhammad Rifqi. Implementation Dual Link IPVPN and GSM IPsec Based on Fortigate 50 E at PT XYZ: Implementasi Dual Link IPVPN Dan GSM Berbasis IPSec Pada Fortigate 50 E Di PT XYZ. J. RESTI (Rekayasa Sist. Teknol. Inf.) 2020, 4 (2), 228-236. https://doi.org/10.29207/resti.v4i2.1465.