Kotadiya, D. T., D. A. Patel, and D. B. Parmar. “Retrospective Study Of ABO & Rh Blood Groups In Blood Donors At Dharpur: Retrospective Study Of ABO & Rh Blood Groups”. National Journal of Integrated Research in Medicine, vol. 4, no. 6, Dec. 2013, pp. 92-94, doi:10.70284/njirm.v4i6.2257.