Sfm - ca final - best book for self study?

@ Vivek - As you said that SD Bala is indeed Student friendly but it lacks tough problems... So i thought I go for SD Bala and could you like suggest me sources where I get good amount of tough problems to crack the subject?? Because once I am clear with the concepts I want to solve the tough problems... So plz advise.. And I have lot of time as well 2.5 years for my Final... So want to do it slowly and properly.

Then JB Gupta notes are also uploaded CA club.. AN Sridhar have variety of problems but care must be taken care since both authors were apporaching different way inorder to solve a particular problems

Cool.. Thanks sir :)

but which book is best...i am not satisfied with rajesh makkar as its concepts are not very clear and i will not prefer it for self study purpose as it is not student friendly also.

Which book should i  choose S D bala or A N Sridhar OR J B Gupta or a combination of these 2.

My attempt lies in nov 14..and i have to do sfm through self with in 2 month in any case..

pls help.