T3 DC. Salmos, Ronnie O. Juliano, and Patrick Neil M. Santiago. 2022. “Immobilizer Compact System (ICS) Using Microcontroller-Based GPS-GSM Module”. International Journal of Progressive Research in Science and Engineering 3 (09):46-52. https://www.journals.grdpublications.com/index.php/ijprse/article/view/711.