Joni Dewanto, Oegik Soegihardjo. Performance of Mechanical Energy Harvesting Unit for Generating Electricity for Portal Gate System. J. ICT des. eng. technol. sci. [Internet]. 2020Jun.19 [cited 2024Sep.19];4(1):6-11. Available from: https://jitdets.com/ojs/index.php/jitdets/article/view/9