https://digitalcommons.georgefox.edu/arthur_roberts/ 2017-03-14 https://digitalcommons.georgefox.edu/arthur_roberts/1/ 2015-02-09 https://digitalcommons.georgefox.edu/arthur_roberts/2/ 2015-02-09 https://digitalcommons.georgefox.edu/arthur_roberts/3/ 2015-02-18 https://digitalcommons.georgefox.edu/arthur_roberts/4/ 2015-03-11 https://digitalcommons.georgefox.edu/arthur_roberts/5/ 2017-03-14