How is A.K.S krishnan question books for may 2018 attempt

Aishwarya Singh (student) (64 Points)

13 March 2018  
How is A.K.S krishnan question books for may 2018 attempt.
My practice manual is of November 2016..i was thinking to purchase these books in place of practice manual this time for questions practice..Will it be a worth buy???

please suggest.