Features of the voiceless 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 ↩
Ladefoged & Maddieson (1996), p. 198. - Ladefoged, Peter; Maddieson, Ian (1996). The Sounds of the World's Languages. Oxford: Blackwell. ISBN 0-631-19815-6. ↩