Sornwijan, K., N. Pindontong, W. Sarot, and T. Piyapattamin. “Physical Growth of the Children in Phitsanulok: A Comparison Between Those with Normal and Undernutrition”. Asian Health, Science and Technology Reports, vol. 11, no. 2, Aug. 2013, pp. 37-48, https://ph03.tci-thaijo.org/index.php/ahstr/article/view/2468.