Gunawan, Iwan, and Zainal Arifin. 2025. “Impeller Design for Centrifugal Pump With Number of 5 Blades Driven Four Stroke 40 Cc Petrol Engine”. KOLECER Jurnal Ilmiah Teknik Mesin 1 (1):53-59. https://doi.org/10.23969/kjitm1120252372553-59.