---Announcement No.22, 2002 of the Ministry of Foreign Trade and Economic Cooperation of the People's Republic of China
2、中华人民共和国对外贸易经济合作部公告2002年第29号
---Announcement No.29, 2002 of the Ministry of Foreign Trade and Economic Cooperation of the People's Republic of China.
3、中华人民共和国对外贸易经济合作部公告2002年第30号
---Announcement No.30, 2002 of the Ministry of Foreign Trade and Economic Cooperation of the People's Republic of China.