The Research on Sino-Vietnamese Border Trade, co-authored by Professor Fan Honggui and others, was published by the Ethnic Publishing House.

This book systematically discusses and analyzes the origin, development and present situation of Sino-Vietnamese border trade from ancient times to the present, both about formal border trade and informal and illegal border trade. The book is mainly macro, but in order to give readers a concrete and vivid understanding of Sino-Vietnamese border trade, there are also chapters to explain the reasons for the economic development in border areas from the appearance and development of a border town. (Information from Guangxi Daily)

In addition, such monographs on economic and trade issues are rare, and most articles are scattered in economic magazines, local research institutions, trade papers and online databases. When searching, I found that Baidu Academic has a large number of related articles.

I hope it helps!