Abdullah, Nuha, and Norasmah Othman. “Applying the Fuzzy Delphi Method to the Content Validity of the Female Leadership Personality Instrument”. Thailand Statistician 21, no. 2 (March 29, 2023): 337–350. accessed October 4, 2026. https://ph02.tci-thaijo.org/index.php/thaistat/article/view/249005.