The Lecture Notes on Mathematical Olympiad Courses: For Senior Section (Volume 1)
, authored by Jiagu Xu, is a comprehensive training resource designed to bridge the gap between standard high school mathematics and the advanced creative techniques required for international competitions Amazon.com Core Content and Structure The Lecture Notes on Mathematical Olympiad Courses: For
Because you have a PDF (searchable), do not print the whole book. Instead: authored by Jiagu Xu