“Designing a Serious Simulation Game Conceptual Model of DMAIC in Determining Improvement Recommendations of Pharmaceutical Industry ”. International Journal of Scientific and Applied Research (IJSAR), EISSN: 2583-0279, vol. 3, no. 8, Aug. 2023, pp. 5-12, https://doi.org/10.54756/IJSAR.2023.V3.8.2.