Tingthong, W., P. B. Buppasiri, C. Chongsomchai, T. Temtanakitpaisan, and U. Sangkomkamhang. “Prevalence of Urinary Incontinence in Pregnant Women at Tertiary Care Hospitals in KhonKaen Province”. Thai Journal of Obstetrics and Gynaecology, vol. 22, no. 1, Jan. 2014, pp. 37-43, https://he02.tci-thaijo.org/index.php/tjog/article/view/12942.