| title | ISBN-13 | year of publica- tion | other author(s) |
|---|---|---|---|
| Lakhotiya Woglaka Po! - Speak Lakota! Level 1 Audio CD | 978-0-9761082-1-4 | 2004 | Jan Ullrich |
| Lakhotiya Woglaka Po! - Speak Lakota! Level 1 Lakota Language Textbook | 978-0-9761082-0-7 | 2004 | |
| Lakhotiya Woglaka Po! - Speak Lakota! Level 2 Audio CD | 978-0-9761082-6-9 | 2006 | |
| Lakhotiya Woglaka Po! - Speak Lakota! Level 2 Lakota Language Textbook | 978-0-9761082-5-2 | 2005 | |
| Lakhotiya Woglaka Po! Speak Lakota! LEVEL 3 AUDIO CD | 978-0-9821107-3-7 | 2011 | |
| Lakhotiya Woglaka Po! - Speak Lakota! Level 3 Lakota Language Textbook | 978-0-9821107-2-0 | 2010 | |
| Lakhotiya Woglaka Po! - Speak Lakota! Level 4 Lakota Language Textbook | 978-0-9821107-6-8 | 2012 | |
| New Lakota Dictionary, 2nd Edition | 978-0-9761082-9-0 | 2008 | |
| Pispiza Wan Wayawa Iyaye/Prairie Dog Goes to School | 978-0-9761082-4-5 | 2006 | |
| Thathanka na Wata - The Buffalo and the Boat | 978-0-9761082-3-8 | 2006 | Kayo Bad Heart Bull |