Lestari, Dian Dwi, Isdaryanto Iskandar, and Wendi Wendi. 2022. “ANALYSIS THE EFFICIENCY OF BOILER 2011 UA WATER TUBE TYPE AT PT PERTAMINA RU III (PERSERO) PLAJU”. International Journal of Social Science 2 (4):1865-72. https://doi.org/10.53625/ijss.v2i4.4164.