Saepulloh, D. “Evaluation of the KAIA-PAY Application Using Nielsen’s Usability Model”. Infoman’s : Jurnal Ilmu-Ilmu Informatika Dan Manajemen, vol. 20, no. 1, Aug. 2026, pp. 41-47, https://ejournal.unsap.ac.id/index.php/infomans/article/view/834.