AL-sabbagh, Azzam, and Bariq Habib Sadiq. “Evaluating Liquid Soap Product Quality Using Process Capability Indicators and Statistical Control Charts / Case Study”. Journal of Management Science (JMAS) 8, no. 3 (July 28, 2025): 544–553. Accessed April 18, 2026. https://exsys.iocspublisher.org/index.php/JMAS/article/view/695.