Sigdel, A., Chaudhary, S., Srivastava, A., & Jha, H. (2016). A Study of the Effectiveness of Pulse Polio Immunization Programme (PPIP) - 2053 B.S.
Lua i Stíl Chicago (17ú heag.)Sigdel, A., S. Chaudhary, A. Srivastava, agus HR Jha. A Study of the Effectiveness of Pulse Polio Immunization Programme (PPIP) - 2053 B.S. 2016.
Lua MLA (8ú heag.)Sigdel, A., et al. A Study of the Effectiveness of Pulse Polio Immunization Programme (PPIP) - 2053 B.S. 2016.
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