James, William, author
Dover, 1956
Buku Teks
Santayana, George, author
Dover, 1955
Buku Teks
Simbolon, Aladin Edivollo, author
Fakultas Psikologi Universitas Indonesia, 1989
UI - Skripsi Membership
Kaniasari, author
1997
UI - Skripsi Membership
Bertyna Y.M.P., author
Universitas Indonesia, 2002
UI - Skripsi Membership