Sabat, Kali charan, and Brinda Sampat. “A Comparative Study Between 7 Stage and 4 Stage Systems Development Life Cycle (SDLC) Models”. IJRDO -Journal of Computer Science Engineering 2, no. 10 (October 31, 2016): 24-33. Accessed November 23, 2024. https://ijrdo.org/index.php/cse/article/view/888.