Adachi, Takashi. "A Unificationist Critique of the Concept of Anonymous Christians in the Theology of Karl Rahner." 2002, 57 pp.
Connery, William S.V. "Religious Thought in Africa as Seen Through the Eyes of One Missionary." 1981.
Fukui, Misa. "The Concept of Election in Light of Ecumenism and Unification Ecumenism." 1992, 104 pp
Isham. "A Comparison of Sikhism and Unificationism: A Basis for Dialogue." 1985.
Lacroix, Fredrick. "A Unificationist Encounter with Jehovah's Witnesses." 1994.
Moss, Bret Aaron. "A New Revelation for Mormonism at Christ's Second Advent: Divine Principle, True Parents, and the Completed Testament Age." 1996, 192 pp.
Shafto, Ken. "A Manual for Teaching Unification Theology from a Judeo-Christian Perspective." 1996, 134 pp. (see also Education)
Shinwald, Josef. "Lost Paradise, Zen, and the Four Realms of Heart." 1995, 238 pp.
Sutcher, Bruce. "Judaism, Christian-Jewish Relations and Unification-Jewish Dialogue." 1985, 99 pp. plus appendices and notes.
Symon, Jennifer. "The Change Impact of An Interreligious Work Study Program: A Case Study" [Religious Youth Service]. 1987, 140 pp. (see also Education)