Park, K. (2007). Park's textbook of preventive and social medicine: Preventive and social medicine (19th ed.). M/s Banarsidas Bhanot.
Tohutoru Kātū Chicago (17th ed.)Park, K. Park's Textbook of Preventive and Social Medicine: Preventive and Social Medicine. 19th ed. Jabalpur: M/s Banarsidas Bhanot, 2007.
Tohutoro MLA (9th ed.)Park, K. Park's Textbook of Preventive and Social Medicine: Preventive and Social Medicine. 19th ed. M/s Banarsidas Bhanot, 2007.
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