HAMZAH, A.; SOLAH, M.; PAIMAN, N. Motorcycles ‘keep left’ order: Is it viable?. Journal of the Society of Automotive Engineers Malaysia, Kuala Lumpur, Malaysia, v. 2, n. 1, p. 75–79, 2021. DOI: 10.56381/jsaem.v2i1.71. Disponível em: https://jsaem.my/index.php/journal/article/view/71. Acesso em: 21 jan. 2025.