Sobel, Michael I.
University of Chicago, 1987
Buku Teks SO
Supriyanto
Fakultas Teknik Universitas Indonesia, 1992
UI - Tesis Membership
edited by R.I. Freshney
IRL Press, 1992
Buku Teks
Entwistle, Jill
New York Roto vision SA 1999,
Buku Referensi
Heavenly Culture, World Peace, Restoration of Light (Organization)
Heavenly Culture, World Peace, Restoration of Light,, 2018
Buku Referensi