Pacific University(Oregon, USA) /1986
Des Moines Area Community College(Iowa, USA) /1990
Nankai University(Tianjin, China) /1993

Institute of Public Administration Ministry of Personnel, P.R.C(Beijing, China) /1994
Fudan University(Shanghai, China) /1996
Fu Jen Catholic University(Taipei, Taiwan) /1998
Weber State University(Utah, USA) /1999
Shenyang Physical Education Institute(Shenyang, China) /1999
Tianjin Academy of Social Sciences(Tianjin, China) /2000
Shanghai Institute of Public Administration and Human Resources(Shanghai, China) /2000
Beijing Language and Culture University(Beijing, China) /2001
Xian Jiaotong University(Xian, China) /2001
School of International Studies in Beijing University(Beijing, China) /2001
University of Oregon(Oregon, USA) /2001
Yung Ta Institute Technology & Commerce(Ping-Tung, Taiwan) /2001
Sakhalin State University(Yuhzno-Sakhalinsk, Russia) /2002
Otto-Friedrich University of Bamberg(Bamberg, Germany) /2002