K. B. . Parmar, S. L. . Kantharia, N. R. . Godara, H. M. . Shah, and M. M. . Patni, “A Cross-Sectional Study to Understand Socio Demographic Profile of Couples Who Adopted Permanent Sterilization in Urban Slums of Surat City”, Natl J Community Med, vol. 4, no. 03, pp. 443–448, Sep. 2013.