Buku Teks
Ohaegbulam, Festus Ogboaja
University Press of America, 1980
Buku Teks
Audria Meuthia Basyadi, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2019
UI - Skripsi (Membership)
Nohan Arum Romadlona, author
2016
UI - Skripsi (Membership)
Rival Abdul Jabar, author
Universitas Indonesia, 2016
UI - Tesis (Membership)