Muhammad Muizzuddin Nawi, Abd Fathul Hakim Zulkifli. Development of Engine Oil Maintenance and Battery Health Monitoring through Short Messaging Service (SMS). JAPTT [Internet]. 2025 Aug. 19 [cited 2026 Mar. 11];4(1):30-7. Available from: https://publisher.uthm.edu.my/ojs/index.php/japtt/article/view/21214