Joseph Rife, Joshua Woods and Joseph Rife, (eds.), "Recent Discoveries at Caesarea, Umm El Jemal, and Haifa" in entry published June 28, 2023, https://caesarea-maritima.org/bibl/54TM86CIGSchumacherRecent Discoveries at Caesarea, Umm El Jemal, and Haifahttps://caesarea-maritima.org/bibl/54TM86CIhttps://www.zotero.org/groups/caesarea-maritima/items/54TM86CIhttps://www.zotero.org/groups/2320447/items/54TM86CIhttp://www.worldcat.org/oclc/5525866483Palestine Exploration Quarterly1888134-14120
  Schumacher, G. “Recent Discoveries at Caesarea, Umm El Jemal, and Haifa.” Palestine Exploration Quarterly 20, no. 3 (1888): 134–41. https://www.worldcat.org/title/recent-discoveries-at-csarea-umm-el-jemal-and-haifa/oclc/5525866483&referer=brief_results.
G Schumacher, Recent Discoveries at Caesarea, Umm El Jemal, and Haifa, Palestine Exploration Quarterly 20, no. 3 (1888): 134–41, https://www.worldcat.org/title/recent-discoveries-at-csarea-umm-el-jemal-and-haifa/oclc/5525866483&referer=brief_results.