Boonyarittipong, P. “Comparison of the Efficacy of Conventional Phototherapy and Double - surface Phototherapy for Neonatal Hyperbilirubinemia”. Vajira Medical Journal : Journal of Urban Medicine, vol. 46, no. 3, Sept. 2011, pp. 187-94, https://he02.tci-thaijo.org/index.php/VMED/article/view/188.