Which book or refresher to use to prepare for entrance exam of MBA in family business and entrepreneurship?

Well, every university or college has different eligibility criteria for the MBA entrance exam I do not have any idea about any other university but I can guide you about the LPUMBA entrance exam. Eligibility Criteria (Qualifying Exam): Pass with 55% aggregate marks in Bachelors degree (any discip

You should start solving first level on any book atleast. I would suggest you take TIME books and share it level 01 & 02 for the exam. You can crack then easily.

You may refer to "Word Power Made Easy - Norman Lewis" for preparing for Verbal Ability and English. Similarly, you can refer to any good book for quantitative reasoning and logical reasoning like "Quantitative reasoning - Arun Sharma".