Porntita Lersbuasin และ Somsook Santibenchakul; Unnop Jaisamrarn. (2015) Knowledge, Attitude and Practice regarding Emergency Contraceptive Pills among Health Care Providers. <i>Thai Journal of Obstetrics and Gynaecology</i>, <i>23</i>(1), 34-43.Porntita Lersbuasin และ Somsook Santibenchakul; Unnop Jaisamrarn. "Knowledge, Attitude and Practice regarding Emergency Contraceptive Pills among Health Care Providers". Thai Journal of Obstetrics and Gynaecology 23 (2015):34-43.Porntita Lersbuasin และ Somsook Santibenchakul; Unnop Jaisamrarn. Knowledge, Attitude and Practice regarding Emergency Contraceptive Pills among Health Care Providers. PIMDEE Co. Ltd.:ม.ป.ท. 2015.