读写（中高级）写作练习册=Northstar:Focus on Reading and Writing
Writing Activity Book2003 年出版0 页ISBN：
FOCUS ON GRAMMAR WORKBOOK AN ADVANCED COURSE FOR REFERENCE AND PRACTICE
1995 年出版199 页ISBN：0201656957
听说 中高级 学生用书=NORTHSTAR:FOCUS ON LISTENING AND SPEAKING HIGH INTERMEDIATE
（美）费里，（美）桑那布里亚编2003 年出版281 页ISBN：
FOCUS ON GRAMMAR AN INTERMEDIATE COURSE FOR REFERENCE AND PRACTICE SECOND EDITION
2000 年出版415 页ISBN：0201346826
FOCUS ON PSYCHOLOGY:A GUIDE TO MASTERING PETER GRAY'S PSYCHOLOGY SECOND EDITION
MARY TRAHAN1994 年出版299 页ISBN：0879016957
AFRICAN RE-CREATION OF WESTERN IMPRESSIONS A FOCUS ON THE KENYAN FILM
RACHAEL DIANGA2011 年出版100 页ISBN：3844321322
STUDIES ON THE ANTIGENIC COMPOSITION OF THE INFLUENZA VIRUS B STRAINS NO 9
L.M.BRANS1952 年出版32 页ISBN：
