World Health Organization. (1997). Manual of laboratory methods for testing of vaccines used in the WHO Expanded Programme on Immunization. World Health Organization.
শিকাগো স্টাইল (17 তম সংস্করণ) উদ্ধৃতিWorld Health Organization. Manual of Laboratory Methods for Testing of Vaccines Used in the WHO Expanded Programme on Immunization. Geneva: World Health Organization, 1997.
M.L.A (9 ম সংস্করণ) উদ্ধৃতিWorld Health Organization. Manual of Laboratory Methods for Testing of Vaccines Used in the WHO Expanded Programme on Immunization. World Health Organization, 1997.
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