Dorothy Friesen, Critical Choices: A Journey with the Filipino People (Grand Rapids, MI: Eerdmans, 1988), 28-31, 49-62. ISBN0-8028-0371-7. Also see Benjamin Baniaga and Helen Liechty Glick, eds. Where will they sit? The Life and Work of Mennonite Central Committee in the Philippines (Davao City: Mennonite Central Committee Philippines, 2005), p. 187. ASIN: B002NZJ14G
Earl Martin, "Stepping into the Stream of History", in Create Space for Peace, Dorothy Friesen and Marilen Abesamis, eds. (Deerfield Beach, FL: Trimark Press, 2011), p. 25. ISBN978-0-9829702-4-9. See also "A Decent Interval / Who Lost Vietnam??", GlobalSecurity.org, retrieved January 18, 2011.
Stoltzfus, "From Volunteer to Activist", Peace Probe, July 4, 2005 (text is dated August 28, 1997). See also Jill Hunting, Finding Pete: Rediscovering the Brother I Lost in Vietnam (Middletown, CT: Wesleyan University Press, 2009). ISBN0-8195-6923-2