Best statistics textbooks to read to tackle this type of exam?

#1
The prescribed textbook we use is our course at ANU is Keller, I have read the book and did most of the end of chapter questions. But the lecturer gives out complete different type of question in the exams, they are much longer and harder.

I have uploaded the past exams for the from 2012 to 2014. Which textbook do you recommend me to read to fully ace the exam in this course as shown by the past papers?

I am willing to read and study any textbook if it helps me to get a HD in this course, the final exam will be in 1.5 months and it will be worth 100% of the course.

https://drive.google.com/drive/folders/0B6DfW2X25tuNQ0FVQ1c4NXA4Njg?usp=sharing