Kartika, A.D.P., Anindo Saka Fitri and Nambi Sembilu 2025. Developing a Web-Based Printing Transaction System Using The Prototype Method: A Case Study at Amanah Advertising. JURNAL TEKNOLOGI DAN OPEN SOURCE. 8, 2 (Oct. 2025), 520 - 534. DOI:https://doi.org/10.36378/jtos.v8i2.4692.