Suppawattanabodee, Busaba, Anan Manomaipiboon, Monawat Ngerncham, and Premwadee Karuhadej. 2011. “Accidents during Transportation to School of Students in Bangkok Metropolitan Area”. Vajira Medical Journal : Journal of Urban Medicine 52 (3):257-64. https://he02.tci-thaijo.org/index.php/VMED/article/view/370.