Kar, Monali, D Shobha Malini, Jaya Singh Kshatri, and Radha M Tripathy. 2017. “Relationship Between Various Components of Maternal Health Care Services With Maternal Mortality Ratio: An Ecological Study”. National Journal of Community Medicine 8 (05):277-82. https://njcmindia.com/index.php/file/article/view/742.