AUGHITRI, F.; NUGROHO, G. .; JAMADIN, A. Dynamic Behavior of Castella Beams: Effect of Web Openings on Stiffness at Natural Frequencies. Semesta Teknika, [S. l.], v. 28, n. 1, p. 77–89, 2025. DOI: 10.18196/st.v28i1.26220. Disponível em: https://journal.umy.ac.id/index.php/st/article/view/26220. Acesso em: 8 sep. 2025.