edited by Benyamin Haggott Beckhart
Columbia Universary Press, 1954, 1956
Buku Teks
Thorne, W.J., author
Oxford University Press , 1948
Buku Teks
Bradford, Frederick A., author
Longmans, Green, 1932
Buku Teks
Achlam Said Basalamah, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2014
UI - Skripsi (Membership)
Yudistira Yudadisastra, author
Universitas Indonesia, 2013
UI - Tesis (Membership)