For ipmat 19 you have to prepare all the sections seperately..For maths & Logic section you can Refer Arun Sharma & For english section gou have to read newspapers and novels as much as possibal..You can find lots of book on amazon For ipmat.But the best combine book is By Ipmat IIM indore by Peorson..Its good one..you can buy it..& 

The best book is your notes..prepare your own notes in each subject it will help you to revise quickly in the last days of exams..