Piwbuakum, D. “Outcome of pregnant women with IUGR in MFM unit for more than 3 visited in 2014-2016”. Thammasat University Hospital Journal Online, vol. 3, no. 3, Dec. 2018, pp. 1-9, https://he02.tci-thaijo.org/index.php/TUHJ/article/view/240291.