Olympiad Problems from all over the World. 9th Grade Content - D.M. Batinetu-Giurgiu, Marin Chirciu, Daniel Sitaru, Neculai Stanciu, Octavian Stroe
56,25 RON
"The book contains 400 problems in algebra, number theory, combinatorics, and geometry, from all over the world. It is an excellent text for prepar...
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