NGUYEN, Thi Bach Duong; MAC, Van Ha; VU, Thi Nga; NGUYEN, Viet Thanh. An Effective Method for the Determination of the Natural Frequency of piled Pier Segments through Impact Vibration Testing. Engineering, Technology & Applied Science Research, Greece, v. 14, n. 5, p. 16326–16333, 2024. DOI: 10.48084/etasr.8143. Disponível em: https://mail.etasr.com/index.php/ETASR/article/view/8143. Acesso em: 3 jun. 2026.