Ishak, Nur Izhatie, and Nahdatul Ahmad. “GoPrintBot: An Interactive E-Commerce for Online Printing Services”. Journal of Information Systems and Informatics 5, no. 2 (May 31, 2023): 771-784. Accessed December 19, 2025. https://journal-isi.org.adsii.or.id/index.php/isi/article/view/502.