Kaushal, S K, et al. “RAPID APPRAISAL OF ROUTINE IMMUNIZATION COVERAGE IN A NEWLY FORMED DISTRICT OF UTTAR PRADESH”. Indian Journal of Community Health, vol. 23, no. 2, Dec. 2011, pp. 69-71, http://www.iapsmupuk.org/journal/index.php/IJCH/article/view/194.