Amazon.com: The IMO Compendium: A Collection of Problems Suggested for The International Mathematical Olympiads: 1959-2009 Second Edition (Problem
Amazon.com: The IMO Compendium: A Collection of Problems Suggested for The International Mathematical Olympiads: 1959-2009 Second Edition (Problem ,The IMO Compendium 国際数学オリンピック1959-2009,Amazon.com: The IMO Compendium: A Collection of Problems Suggested for The International Mathematical Olympiads: 1959-2009 Second Edition (Problem Books in Mathematics): 9781441998538: Djukić, Dušan, Janković, Vladimir, Matić, Ivan, Petrović, Nikola: Books,数学オリンピック2019-2023|日本評論社,国際数学オリンピックについて - 備忘録,