Gow, James MacKintosh. “Notes Near St Fillans : Cup-Marked Stones, Old Burying Grounds at Kindrochet and Drumnakill, Curing Stone or Charm, and Notice of a Flint Knife Found on the Farm of North Pet, Tarland, Aberdeenshire”. Proceedings of the Society of Antiquaries of Scotland 22 (November 30, 1888): 23–26. Accessed May 4, 2024. https://journals.socantscot.org/index.php/psas/article/view/6279.