WIDYASTUTI, Ira; PASERU, Riswandy Loly. Porous Triangular Structure’s Drag Coefficient as a Submerged Obstruction in Open Channels. Engineering, Technology & Applied Science Research, Greece, v. 15, n. 4, p. 24532–24540, 2025. DOI: 10.48084/etasr.11115. Disponível em: https://mail.etasr.com/index.php/ETASR/article/view/11115. Acesso em: 30 may. 2026.