Risandi Alfariz, Muhammad Revandi Ananda and Triase, T. (2026) “Customer Billing Information System and Whatsapp Notification With Web-Based FCFS Method”, Jurnal Multidisiplin Sahombu, 6(01), pp. 106–117. Available at: https://ejournal.seaninstitute.or.id/index.php/JMS/article/view/7988 (Accessed: 30 April 2026).