本书原名:RoI:Practical theory and innovative appeications 并列题名：RoI:Practical theory and innovative appeications RoI:Practical theory and innovative appeications RoI:Practical theory and innovative appeications. 并列题名：Fractal theory and its applications Fractal theory and its applications Critical theory and narrative interpretations Grey prediction theory and its applications 并列题名：Political theory and international relations Granular space theory and its applications