Reading Bion
Rudi Vermote
SCRUM Body of Knowledge (SBOK® Leitfaden) Vierte Edition (4th)
Edusys
The Baker Compact Dictionary of Biblical Studies
Tremper Longman III & Mark L. Strauss
The Coptic Encyclopedia - Volume 3 (CR-ET)
Aziz Suryal Atiya
The World Turned Upside Down
Tim Grove
2000 Years of Christ's Power Vol. 4: The Age of Religious Conflict
Nick R. Needham
2,000 Years of Christ's Power Vol. 2: The Middle Ages