Modern works on Medieval Yunnan and Shan (namely 12th-15th century)

I needed some modern historical works (not manuscripts) on Medieval Yunnan and Shan. If anyone knows some, please let me know. It will be a great help. 

The existence of Bagh Hazarika is true?

Hi,I'm an Assamese muslim from Jorhat and I've heard stories of Bagh Hazarika who fought against the Mughals for Ahom Kingdom but the CM of Assam considers him…