Đề thi
Năm: 2011
Link: http://www.mediafire.com/download.php?vcnsjk1uzi7mte1
Năm: 2010
Link: http://www.mediafire.com/download.php?oh5b727ck4kg4dg

http://bookbooming.com/ChiTietHocOnT...phuong-phap-so