Davis, Con, author
Longman, 1991
Buku Teks
Heavenly Culture, World Peace, Restoration of Light (Organization)
Heavenly Culture, World Peace, Restoration of Light,, 2018
Buku Referensi
Alfred, author
2018
UI - Skripsi (Membership)
Butterworth-Heinemann, 2013
eBooks
Kinrizky Arintia, author
Fakultas Teknik Universitas Indonesia, 2019
UI - Skripsi (Membership)