LABOR PROBLEMS A BOOK OF MATERIALS FOR THEIR STUDY
EDGAR S. FURNISS1925 年出版621 页ISBN：
A GEOGRAPHY OF EUROPE PROBLEMS AND PROSPECTS FIFTH EDITION
GEORGE W.HOFFMAN2222 年出版647 页ISBN：
CLINICAL PSYCHOLOY: A HANDBOOK OF CHILDREN'S BEHAVIOR PROBLEMS
C. M. LOUTTIT1936 年出版695 页ISBN：
SOCIAL PROBLEMS AND THE QUALITY OF LIFE TENTH EDITION
ROBERT H.LAUER2006 年出版554 页ISBN：
Dynamical Problems of Rigid-Elastic Syetems and Structures
N.V.Banichuk1991 年出版236 页ISBN：
A COURSE IN DIFFERENTIAL EQUATIONS WITH BOUNDARY-VALUE PROBLEMS SECOND EDITION
STEPHEN A.WIRKUS2017 年出版767 页ISBN：
Problems of the Hegelian dialectic dialectic reconstructed as a logic of human reality
1992 年出版268 页ISBN：0792320476
THE PSYCHOLOGY OF HELPING AND ALTRUISM:PROBLEMS AND PUZZLES
DAVID A.SCHROEDER1995 年出版334 页ISBN：0070556113
GLOBAL PROBLEMS AND THE CULTURE OF CAPITALISM SECOND EDITION
RICHARD H.ROBBINS2002 年出版421 页ISBN：0205336345
