Student Information System Bulacan: Human Resource 3 (Time and Attendance, Timesheet Management, Shift and Schedule Management, Leave Management, Claims and Reimbursement). AASgBCPJMRA. 2019;1(1). Accessed January 30, 2026. https://ojs.aaresearchindex.com/index.php/aasgbcpjmra/article/view/2230