(+) Lecture Notes on Mathematical Olympiad Vol. 1
(+) Lecture Notes on Mathematical Olympiad Vol. 2
(+) Olympiad Number Theory
(+) Number Theory for Mathematical Contests
Karya : Amir Hossein
(+). Maths Olympiad: Practice Book
Grade : 6
(+). American Mathematics Olympiad (AMO)
Grade : 6
(+). International Mathematics Olympiad 1957-1977: Solution
(+). Polynomial Problems
(+).