A. Rahman, Z. Iqbal, H. Lovel, and M. A. Shah, “Screening for Postnatal Depression in the Developing World: A Comparison of the WHO Self-Reporting Questionnaire (SRQ-20) And the Edinburgh Postnatal Depression Screen (EPDS)”, J Pak Psychiatr Soc, vol. 2, no. 02, pp. 69-72, Dec. 2005.