Singh , GPI creator text India Relx 2008 monographic xvi, 365p.: 9788131212912 http://paramountbooks.com.pk/loginindex.asp?title=Mcqs-In-Preventive-And-Social-Medicine-(pb)2008&ISBN=9788131212912&opt=3&SubCat=06 http://paramountbooks.com.pk/loginindex.asp?title=Mcqs-In-Preventive-And-Social-Medicine-(pb)2008&ISBN=9788131212912&opt=3&SubCat=06 20260128043035.0