THAMRIN, Ismail; NOVALDO, K. COMPARISON SPIRAL PIPE WITH ROUND PIPE FOR HEAT TRANSFER IN BOILER GAS TURBINE. Indonesian Journal of Engineering and Science, [S. l.], v. 1, n. 1, p. 039–044, 2020. DOI: 10.51630/ijes.v1i1.8. Disponível em: https://www.aps.or.id/journal/index.php/ijes/article/view/8. Acesso em: 11 sep. 2025.