ALAWAD, N. A.; HUMAIDI, A. J.; ALARAJI, A. S. Observer Sliding Mode Control Design for lower Exoskeleton system: Rehabilitation Case. Journal of Robotics and Control (JRC), [S. l.], v. 3, n. 4, p. 476–482, 2022. DOI: 10.18196/jrc.v3i4.15239. Disponível em: https://journal.umy.ac.id/index.php/jrc/article/view/15239. Acesso em: 31 aug. 2025.