Chủ đề này có 2 trả lời

[songuyento]

Problems for the Mathematical Olympiads
http://rapidshare.co...drei_Negut.djvu
http://depositfiles....files/nbhkjs66y

Gazeta Matematica - A bridge over three centuries:
http://rapidshare.co..._Paltanea_.djvu
http://depositfiles....files/wsfo7z5gm

Hungarian Problem Book I:
http://rapidshare.co...05_English.djvu

Hungarian Problem Book II:
http://rapidshare.co...28_English.djvu

Hungarian Problem Book III:
http://rapidshare.co..._1929-1943.djvu

Polish and Austrian Mathematics Olympiads: 1981-1995
http://rapidshare.co...18/POL-AUS.djvu

Hungary-Israel Mathematics Competition: The First Twelve Years
http://rapidshare.co...19/HUN-ISR.djvu

Australian Mathematical Olympiads 1979-1995
http://rapidshare.co..._1979-1995.djvu

Bulgarian Mathematical Competitions 2003 - 2006
http://rapidshare.co...66/BUL03-_1.DJV

Mình sẽ tiếp tục cập nhật sau...

[phong than]

Bác ở, mấy file này nhẹ thôi, up lên rapidshare làm gì khó download lắm, cứ up thẳng lên dd cho nhanh.

[songuyento]

Chinese Mathematics Competitions and Olympiads, Book 1: 1981-1993
http://rapidshare.co..._1981-1993.djvu

Chinese Mathematics Competitions and Olympiads, Book 2: 1993-2001
http://rapidshare.co..._1993-2001.djvu

USSR Mathematical Olympiads 1989 - 1992
http://rapidshare.co...o__English.djvu