ASHARI, Dedy; ICHSANI, Djatmiko. Eksperimental Study the Effect of Additional Flat Plate Reflector to Performance the Sinusoidal Solar Water Heater. IPTEK The Journal of Engineering, [S. l.], v. 5, n. 1, p. 9–13, 2025. DOI: 10.12962/joe.v5i1.5015. Disponível em: https://journal.its.ac.id/index.php/joe/article/view/8037. Acesso em: 29 jul. 2026.