Study of internal control of private-owned enterprises 并列题名：Study of internal control of private-owned enterprises Study of financial management in non-state-owned enterprises Study on the foreign direct investment of private-owned enterprises Analysis on social cost of stateowned enterprises Study on industrial relations of the nonpublic-owned enterprises Guide to internal control audits for manufacturing enterprises Root and soul of state-owned enterprises Character of central state-owned enterprises Rational allocation of state-owned enterprises