Joseph Williams, interview by Mike Maniscalco, July 26, 2006, AIRP 2319,
South Dakota Oral History Center, University of South Dakota,
Vermillion, SD.
“Oscar Howe Institute Teaches Young Native American Artists,” Vermillion
Plain Talk, June 27, 1991.
Ken Steinken, “Oscar Howe Institute Gives Artists Opportunity,” Vermillion
Plain Talk, July 9, 1992.
Steve Land, “Artist Robert Penn Masters His Creativity,” Vermillion Plain Talk,
June 25, 1993.
“Oscar Howe Institute Concludes with Exhibition, Sale,” Vermillion Plain Talk,
June 27, 2008.