Sari, R., Rifa’i, A. M., Ahsan, M. S., Pahlevi, M. R., & Arief, M. I. (2022). The Systematic Literature Review of the spiral development model: Topics, trends, and application areas. International Journal of Research and Applied Technology (INJURATECH), 2(2), 154-171. https://doi.org/10.34010/injuratech.v2i2.8372