ARYAL, Mohan Prasad. Quality evaluation of concrete structures: Some nondestructive testing approaches. Nepalese Journal of Engineering, [S. l.], v. 1, n. 1, p. 80–83, 2005. Disponível em: https://nepjol.info/index.php/NJOE/article/view/30. Acesso em: 18 jan. 2025.