The Pattern of One Cup: 3 Reasons It Matters by Austin Maddox
This Cup Is The New Testament by Greg Gay
The History of Individual Cups In The Lord's Supper by Ronny Wade
The Power of One Man by Ronny Wade (a study of G.C. Brewer)
Unity and the One Cup by Brett Hickey
A Discussion About Multiple Cups in Communion--Let the Bible Speak