Study on environmental mangement and cooperation in BRICS countries 并列题名：Study on environmental mangement and cooperation in BRICS countries environmental management and institutions in oecd countries Environmental Management and Institutions in OECD Countries Study on environmental cost management in the fransition of enterprise cluster 并列题名：Study on environmental cost management in the fransition of enterprise cluster Report on financial development and cooperation in Lancang Mekong countries 并列题名：Report on financial development and cooperation in Lancang Mekong countries BRICS: study on environmentally sustainable cities in BRICS countries