Features of the voiced retroflex lateral fricative:
Kirk Miller & Michael Ashby, L2/20-252R Unicode request for IPA modifier-letters (a), pulmonic https://www.unicode.org/L2/L2020/20252r-mod-ipa-a.pdf ↩
Ball, Martin J.; Howard, Sara J.; Miller, Kirk (2018). "Revisions to the extIPA chart". Journal of the International Phonetic Association. 48 (2): 155–164. doi:10.1017/S0025100317000147. S2CID 151863976. /wiki/Martin_J._Ball ↩
Gurubasave Gowda (1972), p. 33. - Gurubasave Gowda, K.S. (1972), Ao-Naga Phonetic Reader, Mysore: Central Institute of Indian Languages ↩