Your question is incomplete i guess. But still if you want to know about books for class 12 them for maths you can refer rs Aggrawal or r d Sharma. For physics Pradeep's physics and hc verma. For chemistry NCERT is good and enough but still you can read Pradeep's chemistry for boards.
Kindly specify more your query what do you want to know so that you can get answer of your query.
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