TY  - BOOK
AU  - Sigdel, Abindra
AU  - Chaudhary, Sanjay
TI  - A study of the effectiveness of pulse polio immunization programme (PPIP) - 2053 B.S
PY  - 1998///
N1  - Research Report
UR  - http://nhrc.org.np/index.php?option=com_content&view=article&id=48&Itemid=53
ER  -