yaar Dr.j.b.gupta classes notes r more than enough to get 80+ marks.
dnt buy refrence book its too long and cant understand proper way.
just buy xerox of classes notes and read them and solve problem.
mene vahi kiya tha and in sfm i got 74 marks eben though tough result.
mail me if u want copy of xerox notes....will provide u xerox provided h have to bear xerox exps.
carajshah2014 @ gmail.com