Available: http://www.sil.org/silesr/2005/silesr2005-022.pdf. A paper copy may be made from the pdf
Available: http://www.sil.org/silesr/2002/SILESR2002-041.pdf A paper copy may be made from the PDF f
Available: http://www.sil.org/silesr/2004/silesr2004-004.pdf A paper copy may be made from the PDF f
Sociolinguistic survey are interview sessions in the course of which a set of pre-defined questions
https://www.sil.org/resources/archives/92057
https://www.sil.org/resources/archives/32348