Sivasankar Sambasivam และผู้แต่งคนอื่นๆ. (2020) Prevalence of safety equipment and helmet use among school studentscommuting to school in South Selangor, Malaysia. <i>Songklanakarin Journal of Science and Technology</i>, <i>42</i>(3), 721-724.Sivasankar Sambasivam และผู้แต่งคนอื่นๆ. "Prevalence of safety equipment and helmet use among school studentscommuting to school in South Selangor, Malaysia". Songklanakarin Journal of Science and Technology 42 (2020):721-724.Sivasankar Sambasivam และผู้แต่งคนอื่นๆ. Prevalence of safety equipment and helmet use among school studentscommuting to school in South Selangor, Malaysia. Research and Development Office, Prince of Songkla University:ม.ป.ท. 2020.