MODERN SCHOOL ADMINISTRATION ITS PROBLEMS AND PROGRESS
JOHN C. ALMACK1933 年出版382 页ISBN：
MODERN PHILOSOPHIES OF EDUCATION FIRST EDITION
JOHN S.BRUBACHER1939 年出版370 页ISBN：
PROBLEMS AS POSSIBILITIES:PROBLEM-BASED LEARNING FOR K-12 EDUCATION
1998 年出版102 页ISBN：0871202972
WATER AND PLANT LIFE PROBLEMS AND MODERN APPROACHES
O.L.LANGE L.KAPPEN E.-D.SCHULZE2222 年出版536 页ISBN：354007838X
SCHAUM'S OUTLINE SERIES THEOR AND PROBLEMS OF MODERN PHYSICS
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