Chanrachakul, B., Herabutya, Y., Suthutvoravut, S., & Suthutvoravut, S. (1997). Ramathibodi Hospital Standard Growth for Birthweight from 28 to 42 Gestational Weeks. Thai Journal of Obstetrics and Gynaecology, 9(1), 7–11. retrieved from https://he02.tci-thaijo.org/index.php/tjog/article/view/257301