Study on international economic integration of the sub-region: theory and practice 并列题名：Study on international economic integration of the sub-region: theory and practice Study on regional economic integration strategy in northeast Asia Study on regional economic integration in Central Asia study on the integration of the sub-region in CIS International business negotiation theory and practice Translation for international communication theory and practice 并列题名：International business negotiation theory and practice 并列题名：Translation for international communication theory and practice Researches on regional economic integration of the Greater Pearl River Delta