Debugging. (2023, November 21). Wikiquote. Retrieved 04:40, July 13, 2024 from https://en.wikiquote.org/w/index.php?title=Debugging&oldid=3404768.
https://github.com/davepinch/pinchy.cc/blob/master/content/topics/people/e/edsger-w-djikstra/testing/testing-can-only-prove-the-presence-of-bugs-not-their-absence.md