Joseph Rife, Joshua Woods and William L. Potter, (eds.), "The Sources of Roman Granite Columns in Israel" in entry published June 28, 2023, https://caesarea-maritima.org/bibl/RT9EVAUAOlwenWilliams-ThorpeMichael MHentyThe Sources of Roman Granite Columns in Israelhttps://caesarea-maritima.org/bibl/RT9EVAUAhttps://www.zotero.org/groups/caesarea-maritima/items/RT9EVAUAhttps://www.zotero.org/groups/2320447/items/RT9EVAUAhttp://www.worldcat.org/oclc/5525841955Levant2000155-17032
  Williams-Thorpe, Olwen, and Michael M Henty. “The Sources of Roman Granite Columns in Israel.” Levant 32, no. 1 (2000): 155–70. https://www.worldcat.org/title/the-sources-of-roman-granite-columns-in-israel/oclc/5525841955&referer=brief_results.
Olwen Williams-Thorpe and Michael M Henty, The Sources of Roman Granite Columns in Israel, Levant 32, no. 1 (2000): 155–70, https://www.worldcat.org/title/the-sources-of-roman-granite-columns-in-israel/oclc/5525841955&referer=brief_results.