Bhardwaj, A. K., Gupta, B. P., Rana, D. D., Swami, H. M., & Vaidya, N. K. (1990). Immunization Services In Rural Population Campaign vs Clinical Approach. Indian Journal of Community Health, 6(3), 70–74. Retrieved from http://iapsmupuk.org/journal/index.php/IJCH/article/view/10