Imam Riadi, Rusydi Umar, Syahib MI. Akuisisi Bukti Digital Viber Messenger Android Menggunakan Metode National Institute of Standards and Technology (NIST) : Acquisition of Digital Evidence Android-Based Viber Messenger App Using the National Institute of Standards and Technology (NIST) Method . J. RESTI (Rekayasa Sist. Teknol. Inf.) . 2021;5(1):45-54. doi:10.29207/resti.v5i1.2626