KALAISELVI, V.; JOHN ARAVINDHAR, D. Nondestructive testing based weld defect classification using tetrolet transform. International Journal of Engineering and Technology, [S. l.], v. 7, n. 4, p. 4242–4245, 2018. DOI: 10.14419/ijet.v7i4.15437. Disponível em: https://mail.sciencepubco.com/index.php/IJET/article/view/15437.. Acesso em: 17 aug. 2025.