Gunawan, Iwan, and Zainal Arifin. “Impeller Design for Centrifugal Pump With Number of 5 Blades Driven Four Stroke 40 Cc Petrol Engine”. KOLECER Jurnal Ilmiah Teknik Mesin, vol. 1, no. 1, Mar. 2025, pp. 53-59, doi:10.23969/kjitm1120252372553-59.