Popma Books by K. J. Popma (1903–1986), who was a teacher of classical languages and a special professor of Reformed philosophy at the universities of Groningen and Utrecht. Share this:ShareClick to share on Facebook (Opens in new window)Click to share on Twitter (Opens in new window)Click to share on Pocket (Opens in new window)Click to share on LinkedIn (Opens in new window)Click to print (Opens in new window)