D.M. Batinetu Giurgiu Marin Chirciu Daniel Sitaru Olympiad Problems from all over the World 7th Grade Content vol.3 39.00 lei Magazin: libris.ro
D.M. Batinetu Giurgiu Marin Chirciu Daniel Sitaru Olympiad Problems from all over the World 8th Grade Content vol.4 39.00 lei Magazin: libris.ro