[2019-07-26]. (原始内容存档于2011-07-19). Gurubasave Gowda, K.S., Ao-Naga Phonetic Reader, Mysore: Central Institute of Indian Languages, 1972 在PHOIBLE上搜尋含有[ɭ˔]的語言
Harald; Forkel, Robert; Haspelmath, Martin; Bank, Sebastian (编). Pochuri Naga. Glottolog 2.7. Jena: Max Planck Institute for the Science of Human History