并列题名：Research on regional economic integration in Beibu gulf economic zone of Guangxi Research on regional economic integration in Beibu gulf economic zone of Guangxi 并列题名：Research on regional economy integration of Yan-Long-Tu 并列题名：Research on regional economic cooperation of Shanghai cooperation organization 并列题名：Researches on regional economic integration of the Greater Pearl River Delta Research on regional economic integration in northeast Asia 并列题名：Research on the regional financial risk of the east economic zone of China 并列题名：Study on regional economic integration in Central Asia 并列题名：Research on economic integration of migrant population in China 并列题名：Research on regional economic transformation in China