Suarda, Made, 		Kusuma, I Gusti Bagus wijaya, 		Sucipta, Made, AND 		Ghurri, Ainul.
" Preliminary Study on Various Shaped Models of Delivery valve in Hydraulic Ram Pump – Experimental Results" <em>International Journal of Engineering and Emerging Technology</em> [Online], Volume 5 Number 1 (3 August 2020)