Byamba, Byambasuren, and Su-Cheng Haw. “Data Privacy Framework on Multi Check-Out Timestamp Order for Secured Transaction in Mobile Network”. International Journal on Advanced Science, Engineering and Information Technology 1, no. 3 (June 1, 2011): 289–293. Accessed June 3, 2024. https://ijaseit.insightsociety.org/index.php/ijaseit/article/view/60.