Oktaviani, A., Susanti, M., Sarkawi, D., & Adriani, T. (2019). Designing a Railway Ticket Ordering Information System at PT Hotel Murah Travelindo Jakarta With Waterfall Method. Sinkron : Jurnal Dan Penelitian Teknik Informatika, 3(2), 167-174. https://doi.org/10.33395/sinkron.v3i2.10063