Jogi, S. R., and A. R. Ekka. “Maternal Mortality Review by Three Delay Model: A Retrospective Study from a Tertiary Care Hospital of Chhattisgarh”. International Journal of Reproduction, Contraception, Obstetrics and Gynecology, vol. 10, no. 1, Dec. 2020, pp. 262-7, doi:10.18203/2320-1770.ijrcog20205779.