O. P. Anwar, R. Rakryan, and N. Faizah, “Development of an Android-Based Online Attendance System for Individual Service Providers of the Jagakarsa Fire Department Using the AppSheet Platform(Case Study: South Jakarta Jagakarsa Fire Department Sector)”, jms, vol. 3, no. 1, pp. 9–17, Feb. 2025, doi: 10.59431/jms.v3i1.545.