Back Pain and the Observed Factors among Oil Palm Workers. International Journal of Engineering Technology and Sciences, [S. l.], v. 3, n. 1, p. 70–78, 2016. DOI: 10.15282/ijets.5.2016.1.9.1048. Disponível em: https://journal.ump.edu.my/ijets/article/view/6217. Acesso em: 6 jun. 2025.