Great books of the Western World - Volume 16
Encyclopaedia Britannica, Inc
I OMNIST
Ward Smith
Encyclopedia of World Cultures, indexes
David Levinson
Who's Who in Classical Mythology
Adrian Room
Philosophy Bites
David Edmonds & Nigel Warburton
Industrial Internet of Things; Technologies and Research Directions
Anand Sharma & Sunil Kumar Jangir & Manish Kumar & Dilip Kumar Choubey & Tarun Shrivastava & S. Balamurugan