Tintara, H., and R. Leetanaporn. “Home-made Knot-pusher for Extracorporeal Knot-tying”. Thai Journal of Obstetrics and Gynaecology, vol. 6, no. 1, Jan. 1994, pp. 33-36, https://he02.tci-thaijo.org/index.php/tjog/article/view/257801.