Research on the theory and system of taxpayer's rights protection 并列题名:Research on the theory and system of taxpayer's rights protection Research on the theory and system of ecological civilization Research on the legal system of cultivated land protection Research on the theory and practice of China's property rights market Research on the theory and system of fiscal law 并列题名:Research on the theory and system of ecological civilization Research on the international legal system of diplomatic protection Research on legal system of digital publishing copyright protection 并列题名:Research on the theory and system of fiscal law