Veronica Nuraini Widjajanti, author
Kanisius, 1993
Buku Teks
Davidson, Stanley, Sir, author
Williams and Wilkins, 1967
Buku Teks
Edited by Russell L. Cecil and Robert F. Loeb
W.B. Saunders, 1951
Buku Teks
Kathleen Agone ... [and others] ; penerjemah, Dini Adityarini
Gramedia, 1996
Buku Teks
Coe, Rodney M.
McGraw-Hill, 1970
Buku Teks