Cheun Chaotrakool และ Suppasiri Hayakungchat; Thumwadee Tangsiriwatthana. (2019) Efficacy of Oral Isosorbide Mononitrate Sustained-releasefor Pre-induction Cervical Ripening in Term Pregnant Womenin an Outpatient Setting: A randomized controlled trial. <i>Thai Journal of Obstetrics and Gynaecology</i>, <i>27</i>(1), 13-21.Cheun Chaotrakool และ Suppasiri Hayakungchat; Thumwadee Tangsiriwatthana. "Efficacy of Oral Isosorbide Mononitrate Sustained-releasefor Pre-induction Cervical Ripening in Term Pregnant Womenin an Outpatient Setting: A randomized controlled trial". Thai Journal of Obstetrics and Gynaecology 27 (2019):13-21.Cheun Chaotrakool และ Suppasiri Hayakungchat; Thumwadee Tangsiriwatthana. Efficacy of Oral Isosorbide Mononitrate Sustained-releasefor Pre-induction Cervical Ripening in Term Pregnant Womenin an Outpatient Setting: A randomized controlled trial. PIMDEE Co. Ltd.:ม.ป.ท. 2019.