Mastam, Nur Maslina, and Rozniza Zaharudin. “The Fuzzy Delphi Method: Validation of the Professional Competencies Elements in Career Readiness Instrument for Students With Disabilities”. International Journal of Academic Research in Progressive Education and Development 13, no. 4 (November 27, 2024). Accessed July 8, 2025. https://ijarped.com/index.php/journal/article/view/3177.