THE PERFORMANCE AND EFFICIENCY RATING EVALUATION OF A HYDRAULIC RAM PUMP PROTOTYPE WITH HEIGHT VARIATIONS. FROPIL (Forum Profesional Teknik Sipil) [Internet]. 2019 Oct. 6 [cited 2026 Aug. 14];7(1):47-53. Available from: https://www.journal.ubb.ac.id/index.php/fropil/article/view/1403