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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 Jul. 5];7(1):47-53. Available from: https://journal.ubb.ac.id/index.php/fropil/article/view/1403