Ratings analysis:the theory and practice of audience research Risk-return analysis : the theory and practice of rational investing a balanced analysis of the theory and practice of a sustainable portfolio China economic theory and practice of innovation research The theory and practice of industrial research In-depth analysis of the legal theory and practice of competition restriction Theory and practice of regional research 并列题名:China economic theory and practice of innovation research 并列题名:Theory and practice of regional research 并列题名:In-depth analysis of the legal theory and practice of competition restriction