Author(s): ZHAO Haixing, SHU Ping, HE Libo, XUE Yan, HAN Shumin, SUN Jun, WANG Ying, WU Jing, YANG Jiren, LU Zhi, ZHANG Hua, GUO Quan
Pages: 58-59
Year: 2001 Issue:  12
Journal: VOCATIONAL AND TECHNICAL EDUCATION