1.Ngoc TH. HANGOUTPLUS: A PRIVACY PRESERVING SOCIAL NETWORKING SERVICE PROVIDING REAL-TIME AND MORE SECURE PROTOCOL BASED ON HANGOUT SYSTEM. Vietnam J. Sci. Technol. [Internet]. 2012 Jun. 26 [cited 2026 Apr. 17];48(4). Available from: https://vjst.vast.vn/jst/article/view/1181