Druken, B. K., and A. S. Marzocchi. “trings, ears, & oards: aking ractions eaning-illed (pp. 54--60)”. hio ournal of chool athematics, vol. 83, no. 1, Nov. 2019, http://voyager.janeway.systems:9999/index.php/OJSM/article/view/7209.