Rusdiyana, L. ., Sasmita, N. E. ., Husodo, N. ., Widiyono, E. ., Hakim, M. L. ., & Hakim, R. . (2025). Planning and Cost Analysis of Washing Porang Subber on Combination Machine for Washing and Cutting Porang Tuber. IPTEK The Journal of Engineering, 7(2), 83–86. https://doi.org/10.12962/j23378557.v7i2.a11273