Yohanes Setiawan, E. ., D. Hari Praswanto, and S. Bahri L. M. “Effect of Blade Materials on the Undershot Water Turbine Performance”. Journal of Applied Research and Technology, vol. 22, no. 2, Apr. 2024, pp. 266-73, doi:10.22201/icat.24486736e.2024.22.2.1634.