Nur I, Effiandi N, Veronica V. Experimental Study on the Effect of Waste Valve Load and the Volume of Air Chamber on the Performance of the Hydraulic Ram Pump (Hydram) to Water the Paddy Field in Pakandangan, Padang Pariaman Regency. jtm [Internet]. 28Dec.2021 [cited 7May2024];14(2):75-9. Available from: http://ejournal2.pnp.ac.id/index.php/jtm/article/view/630