Sun, Hongkai. 1983. {L}iujiangliuyu de minzu yuyan jiqi xishu fenlei \zh{六江流域的民族语言及其系属分类} [{M}inority languages of the {S}ix {R}iver {V}alley and their genetic classification]. Mínzú xuébào \zh{民族学报} 3. 99-273.
@article{jacquesestimative-sun83liujiang, author = {Sun, Hongkai}, journal = {Mínzú xuébào \zh{民族学报}}, pages = {99-273}, title = {{L}iujiangliuyu de minzu yuyan jiqi xishu fenlei \zh{六江流域的民族语言及其系属分类} [{M}inority languages of the {S}ix {R}iver {V}alley and their genetic classification]}, volume = {3}, year = {1983} }