MTG International Mathematics Olympiad (IMO) Work Book - Class 9
MTG IMO Work Book Class 9 (Old Edition)
International Mathematical Olympiad (IMO) - Computer-based Test Series - Class 9
MTG Foundation Course for JEE/Olympiads - Class 9 Maths
Olympiad Excellence Guide for Mathematics (Class-9)
The IIT Foundation Series: Mathematics Class 9 (Old Edition)