Speech community Wikipedia
A Definition of Speech Community in Sociolinguistics thoughtco.com
The Speech Community John J Gumperz 1968 (pdf)
What are speech communities? Marcyliena H Morgan (pdf)
The Speech Community Peter L Patrick (pdf)
Beyond the speech community: On belonging to a multilingual, diasporic, and digital social network ScienceDirect
Speech Community Trudy Milburn at Wiley Internet Library