ABDEL-SATTAR, R. A.-B.; UNLUTURK, Y. Normal Developable Surfaces of A Surface Along A Direction Curve. Journal of the Indonesian Mathematical Society, [S. l.], v. 26, n. 3, p. 319–333, 2020. DOI: 10.22342/jims.26.3.872.319-333. Disponível em: https://jims-a.org/index.php/jimsa/article/view/872. Acesso em: 30 apr. 2024.