Varshney, A M, U S Singh, and D Kumar. 2013. “SOURCES OF PREVIOUS ANTI-TUBERCULAR DRUGS EXPOSURE FOR PATIENT REGISTERED IN RNTCP AS RETREATMENT CASES IN DISTRICT ANAND, GUJARAT”. Indian Journal of Community Health 25 (2):159-63. https://iapsmupuk.org/journal/index.php/IJCH/article/view/307.