D`arcy, M.C. (Martin Cyril), author
Meridian Books, 1956
Buku Teks
Fromm, Erich, author
Harper Collins, 2000
Buku Teks
Butarbutar, Tiodora Br., author
Fakultas Psikologi Universitas Indonesia, 2004
UI - Skripsi (Membership)
Herausgegeben
Max Niemeyer Verlag, 1965
Buku Teks
J. B. Banawiratma
Kanisius, 1993
Buku Teks