https://www.sil.org/resources/archives/74378
Available: http://www.sil.org/silesr/2002/SILESR2002-071.pdf A paper copy may be made from the PDF f
https://www.sil.org/resources/archives/41567
https://www.sil.org/resources/archives/41520
https://www.sil.org/resources/archives/41569
https://www.sil.org/resources/archives/41521