Faizal Abdullah. “Failure Mode and Effect Criticality Analysis Using Multi-Perspective Fuzzy Rule-Based Method: A Case Study on Refinery Catalyst Slide Valve”. International Journal of Intelligent Systems and Applications in Engineering 12, no. 4 (August 14, 2024): 2499 –. Accessed September 19, 2025. https://ijisae.org/index.php/IJISAE/article/view/6677.