^Lama, Ziwo Qiu-Fuyuan (2012), Subgrouping of Nisoic (Yi) Languages, thesis, University of Texas at Arlington
^Hammarström, Harald; Forkel, Robert; Haspelmath, Martin; Bank, Sebastian (编). Samatao. Glottolog 2.7. Jena: Max Planck Institute for the Science of Human History. 2016.