Qinggong Zeng. (2019) Democracy Wisdom in Ancient China,Remonstating with the Emperor. Rangsit University:ม.ป.ท.Qinggong Zeng. 2019. Democracy Wisdom in Ancient China,Remonstating with the Emperor. ม.ป.ท.:Rangsit University;Qinggong Zeng. Democracy Wisdom in Ancient China,Remonstating with the Emperor. ม.ป.ท.:Rangsit University, 2019. Print.