O., M.Z. et al. 2019. E-Logic Trainer Kit : Development of an Electronic Educational Simulator and Quiz Kit for Logic Gate Combinational Circuit by using Arduino as Application. International Journal of Online and Biomedical Engineering (iJOE). 15, 14 (Oct. 2019), pp. 67–77. DOI:https://doi.org/10.3991/ijoe.v15i14.11410.