angky, puspawan, Manurung, M.M. and Nuramal, A.N. 2024. The ANALYSIS OF HEAD LOSSES AND EFFICIENCY OF CENTRIFUGAL PUMP G31-41A PLANT 35 AT PT. PERTAMINA REFINERY RU V BALIKPAPAN. Teknosia. 18, 1 (Jun. 2024), 12–20. DOI:https://doi.org/10.33369/teknosia.v18i1.34650.