VNSGU B.Sc SY Sem 3 2012 Industrial Chemistry (I.D.) PDF Download November 22, 2016 by Soubhagya Ranjan Nath
VNSGU B.Sc Sem 2 2012 Industrial Chemistry (I.D) PDF Download November 22, 2016 by Soubhagya Ranjan Nath
VNSGU B.Sc SY Sem 3 2013 Industrial Chemistry (I.D.) PDF Download November 21, 2016 by Soubhagya Ranjan Nath
VNSGU B.Sc Sem 3 2014 Industrial Chemistry (I.D.) PDF Download November 18, 2016 by Soubhagya Ranjan Nath