1. Squatting position for delivery;Allahbadia;Journal of the Indian Medical Association,1993
2. Why deliver in the supine position?;Allahbadia;Australian and New Zealand Journal of Obstetrics and Gynaecology,1992
3. The effects of different positioning on the duration of the second stage of labor in primiparous women;Amiri;Journal of Zanjan University of Medical Sciences and Health Services,2012
4. Comparison the effect of sitting and kneeling positions during the second stage of labor on pain and duration of second stage of labor in nulliparous women;Azhari;Iranian Journal of Obstetrics, Gynecology and Infertility,2013
5. Randomised controlled trial on modified squatting position of birthing;Bhardwaj;International Journal of Gynecology & Obstetrics,1994