Niu, Zhigong.

• Tʻang shu
• An Lushan Shi Siming ping zhuan (Sui Tang li shi ren wu)
• Li Yuan jian Tang shi lue
• Li Yuan jian Tang shi lüe
• Tang dai bei shi yu wen hua yan jiu
• Tang dai shi lun
• Tang dai shi xue yu mu zhi yan jiu
• Tang Gaozu zhuan