Hello,

The books are available in the official website. There is a option called study centre there you can get reference books, contact numbers are available so you can get more information about it. E-Library are available as well so you can get help from that. So now you know where to find the books so start your preparations. It happens four times a year so you are not late and if you think you are not prepared then you can apply later on. I think you should not take stress about when you should have started rather you should start preparing as soon as you can.

Hope it helps.

Good luck.