Imanda, Almyra Gitta, Ade Eviyanti, Hindarto Hindarto, and Hamzah Setiawan. “Web-Based And Whatsapp Gateway Tuition Payment Information System (Case Study Of SMK Antartika 2 Sidoarjo)”. Procedia of Engineering and Life Science 40 (July 28, 2023). Accessed December 12, 2024. https://pels.umsida.ac.id/index.php/PELS/article/view/1422.