(1)
Rizlan, W.; Hadi Purba, H.; ., H.; ., S.; Nasir, M.; Aisyah, S. The Effect of Efficiency Measurement to the Improvement of Maintenance Productivity. IJET 2019, 7 (4), 6964-6969. https://doi.org/10.14419/ijet.v7i4.23255.