ISBN 1-60142-384-5) 《Dug Down Deep》 Multnomah, 2010年. 《Humble Orthodoxy: Holding the Truth High Without Putting People Down》 Multnomah, 2013年. ISBN 1-60142-475-4)
[2020-04-25]. Oregon Telephone Herald. Advertising for Oregon Telephone Herald. Multnomah County Library. Lambardi Grand Opera Company. [2020-04-25]. (原始内容存档于2021-01-18)