GOKUL, S.; ABUTHAHEER, K.; DEEPAK, R. Annamalai; HARISH, B.; JOSHUA, P. Modern Literature Overview On Fabrication of External Pipe Climbing Robot. International Journal of Research in Engineering, Science and Management, [S. l.], v. 4, n. 4, p. 70–73, 2021. Disponível em: https://journal.ijresm.com/index.php/ijresm/article/view/648.. Acesso em: 3 may. 2024.