Logos Bible Software v1.6, 1994, Logos Research Systems, Inc. (includes Strong's Lexicon)

The Adventist Bible Commentary, 1980, Review and Herald Publishing Association, Washington, DC

A History of the Christian Church, Fourth Edition, Williston Walker, 1985, Charles Scribner's Sons, New York

From Sabbath to Sunday, Samuele Bacchiocchi. 1977, The Pontifical Gregorian University Press, Rome, Italy. (Con approvazione del Vicariato di Roma in data 17 giugno 1975) (With the approval of the Pope, June 17, 1975) Available from Biblical Perspectives, 4569 Lisa Lane, Berrien Springs, MI 49103

Sabbath and Sunday in Early Christianity, Robert L. Odom. 1977, Review and Herald Publishing Association, Washington, DC 20012

Divine Rest for Human Restlessness, Samuele Bacchiocchi, 1990, The Pontifical Gregorian University Press, Rome, Italy

The Kingdom of the Cults, Walter Martin, 1996, Bethany House Publishers, Minneapolis, Minnesota

PC Study Bible, Version 2, BibleSoft, Seattle Washington. (includes multiple references including Matthew Henry's Commentary, Strong's lexicon, Englishman's concordance, Greek/English interlinear, and many others.)

Seventh-day Adventists Believe, Ministerial Association of the General Conference of Seventh-day Adventists, 1988, Review and Herald Publishing Association, Hagerstown, Maryland

Catechism of the Catholic Church, 1994, Paulist Press, Mahwah, New Jersey

The Temple, Its Ministry and Services, Alfred Edersheim, 1994, Hendrickson Publishers, Peabody, Massachusetts

Magnificent Disappointment, 1994, C. Mervyn Maxwell, Pacific Press Publishing Association, Boise, Idaho

A Pause for Peace, 1992, Clifford Goldstein, , Pacific Press Publishing Association, Boise, Idaho

God Cares, (2 volumes) 1985, C. Mervyn Maxwell, Pacific Press Publishing Association, Boise, ID

Daniel and the Revelation, 1944, Uriah Smith, Southern Publishing Association, Nashville, TN

Crisis!, (2 volumes) 1982, Desmond Ford, Desmond Ford Publications, Newcastle, CA