sir, plz suggest the best book or app to follow gk

sir, I want toattempt chsl which is going to release in january 2019. For that iam in confuse about gk. whether to follow upto +12books or standard gk book. if book pls suggest its name. kindly clarify my doubt. tq sir

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Async अन्य संबंधित चर्चाएं
ssc chsl
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ssc chsl
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