Fitra Azyus, Adryan, Sastra Kusuma Wijaya, and Mohd Naved. “Determining RUL Predictive Maintenance on Aircraft Engines Using GRU”. Journal of Mechanical, Civil and Industrial Engineering 3, no. 3 (December 11, 2022): 79–84. Accessed October 6, 2025. https://al-kindipublishers.org/index.php/jmcie/article/view/4510.