Purwantono, P., B. Amin, A. Aziz, J. Jasman, and A. Kurniawan. “Performance Test of Pikohidro Cross Flow Water Turbine Using Multilevel Double Penstock”. Teknomekanik, vol. 2, no. 2, Dec. 2019, pp. 76-80, doi:10.24036/tm.v2i2.4172.