Royce, James E.
McGraw-Hill, 1961
Buku Teks
edited by Saxe Commins and Robert N. Linscott
Modern Pocket Library, 1947
Buku Teks
Anggono Wisnudjati
Fakultas Ilmu Pengetahuan dan Budaya Universitas Indonesia, 2002
UI - Skripsi Membership
Oxford University Press, 1962
Buku Teks
ed. by Saxe Commins & Robert N. Linscott.
Random House , 1947
Buku Teks