Puangsricharern, Apithan, and Wahcharapot Anakrat. 2012. “Trends in Singleton Breech Delivery in Rajavithi Hospital from 2002-2008”. Thai Journal of Obstetrics and Gynaecology 20 (4). Bangkok, Thailand:191-97. https://he02.tci-thaijo.org/index.php/tjog/article/view/5609.