you will have to study from 5th standard to fsc standard books in order to achieve good marks.As these books are authentic and all mcqs and long answers come from here.plz check past papers if i am wrong.After this you should go for videos on net.after videos solve past papers with net.I did like that and i hope i will get 89 .i in hurry skip my 2 num short answer and did wrong 3 mcqs.otherwise my marks would be above 90.This is a sincere advice.I keep these types books in the end and only extracts the outline of syllabus.

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