Kartika, Mhd Agung Asmara, and Misriana. 2023. “ELECTRICITY TOKEN VALUE BUTTON PRESSING SYSTEM ON HELPED PREPAID ELECTRICITY KWh METER BLUETOOTH USING MIT APP INVENTOR”. Bulletin of Engineering Science, Technology and Industry 1 (3):115-22. https://doi.org/10.59733/besti.v1i3.14.