Because the topic of the thesis is On the Supervision System in Tang Dynasty, I want to find some books about the supervision system in Tang Dynasty. If you have, please let me know. Thank you.

I am a history major, and the answers upstairs are useless. To understand the supervision system in the Tang Dynasty, we must first look at ancient books. There are official records in New Tang Book and Old Tang Book, in which you can find the platform of suggestion, riding a constant attendant left and right, advising doctors left and right, filling vacancies left and right, picking up scraps left and right, and being supervised by local officials. There are also Tang Yaohui, Six Classics of the Tang Dynasty, and Tongjing, all of which have related contents in the "official" section. Then go to the paper database, such as VIP and Wanfang, and look for other people's research papers, but don't copy them. It is best to find supervised cases. In fact, the characteristics of the supervision system in the Tang Dynasty are not very prominent, and it is not easy for beginners to write. You should choose the platform remonstrance system in Song Dynasty, which is more prominent. Someone upstairs said "Zhenguan Dignitary". I can tell you responsibly that this book will not help you. First of all, it records the words and deeds of Taizong, not the system; Secondly, it was examined by Emperor Taizong himself, which means there are many false elements in it, such as describing Li as how bad he is and patting his face. In short, the historical value of this book is not strong.