Tannirandorn, Yuen, Teera Wacharapreechanont, and Sukhit Phaosavasdi. 1995. “Value of Amniotic Fluid Index Measurement in Predicting Perinatal Outcome”. Thai Journal of Obstetrics and Gynaecology 7 (2). Bangkok, Thailand. https://he02.tci-thaijo.org/index.php/tjog/article/view/257750.