Refer Text Books or Scanner ???

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I Guys, Please give me solution about my problem. I am Studying B.com 4th semester (In india), I have 7 subjects to study so I am planning to buy Guide and study the subjects in that even it costs only Rs.270 but If i take all the text books it will around Rs.1000 and it is very difficult to study all the text books for me bcoz I am studying in evening college mornings I will be working till now I passed 3 semesters by studying in Guide ..... Please suggest me what should I refer, whether Text books or Guide