Study on the legal issues of intergovernmental cooperation in regional economic integration 并列题名:On the legal issues of intergovernmental cooperation in the governance of transboundary pollution On the legal issues of intergovernmental cooperation in the governance of transboundary pollution Study on legal coordination in administrative cooperation for regional economic integration Studies on the legal issues in the regional economic integration 并列正题名:Study on legal coordination in administrative cooperation for regional economic integration Study on China's participation of regional economic integration Study on the legal issues of sovereignty currency international circulation Study on the legal regime of international cooperation in food safety 并列题名:Studies on the legal issues in the regional economic integration