Abdul Halim, Nurul Nadiah, S. Sarifah Radiah Shariff, and Siti Meriam Zahari. 2020. “Single-Machine Integrated Production Preventive Maintenance Scheduling: A Simheuristic Approach”. MATEMATIKA 36 (2):113-26. https://doi.org/10.11113/matematika.v36.n2.1168.