EFFECTIVE BUSINESS WRITING STRATEGIES AND SUGGESTIONS
MARYANN V.PIOTROWSKI1989 年出版159 页ISBN：
EFFECTIVE COMMUNICATION IN BUSINESS SEVENTH EDITION
MORRIS PHILIP WOLF1979 年出版0 页ISBN：
EFFECTIVE MANAGEMENT FOR ENGINEERS AND SCIENTISTS
LEON A. WORTMAN1981 年出版275 页ISBN：
Effective Medium Theory:Principles and Applications
TUCK C.CHOY1999 年出版182 页ISBN：
Prescription for Effective Communication and Motivation
George1978 年出版138 页ISBN：9780883720851;088372085X
