Sethi, P. S., S. Sharma, and I. Chawla. “Comparative Evaluation of Composite and Simplified Who Partograms in a Tertiary Care Centre in North India”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 6, no. 11, Oct. 2017, pp. 5003-7, doi:10.18203/2320-1770.ijrcog20175016.