“STRUCTURING A BLURRY SKILL-ABILITY SYSTEM FOR PERSONAL MADE E-LEARNING BY USING FUZZY METHODS”. Arabian Journal of Business and Management Review (AJBMR) 3, no. 8 (April 5, 2014): 65–73. Accessed September 13, 2026. https://j.arabianjbmr.com/index.php/ajbmr/article/view/614.