Evarts, Harry F., author
Allyn & Bacon, 1966
Buku Teks
Punmia, B.C., author
Laxmi Publications, 1988
Buku Teks
Universitas Indonesia, 1998
UI - Skripsi (Membership)
Levin, Richard I., author
LPPM, 1977
Buku Teks
Rissa Delania, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2015
UI - Tesis (Membership)