Shaaban, Safaa, and Mohamed A. Khalek Hassan. “The European Foundation for Quality Management (efqm) Model Scale: A Quantitative Instrument”. Journal of Management and Science 11, no. 3 (September 30, 2021): 60-64. Accessed May 1, 2025. https://www.jmseleyon.com/index.php/jms/article/view/489.