Syakhroni, Akhmad, Rizka Fajar Adi Darmawan, and Novi Marlyana. 2021. “Machine Maintenance Design Using Markov Chain Method to Reduce Maintenance Costs”. International Journal of Education, Science, Technology, and Engineering (IJESTE) 4 (1), 39-58. https://doi.org/10.36079/lamintang.ijeste-0401.224.