Florian Kurniadhi, Yosep Wahjudi, Abdul Rahman, Emil R. Kaburuan, Gunawan Wang, Sfenrianto. (2020). Loyalty Point Reward System Using Blockchain : (Case Study in PT XYZ). International Journal of Control and Automation, 13(4), 245 - 251. Retrieved from http://sersc.org/journals/index.php/IJCA/article/view/16074