Williamson, David, author
Currency Press, 1975
Koleksi Publik
Siregar, Mia Sari, author
1995
UI - Skripsi (Membership)
Kleberg, Lars
Macmillan, 1993.
Buku Teks
Williamson, David, author
Currency Press, 1975
Buku Teks
M. R. (Muhammad Rustandi) Kartakusuma, author
Balai Pustaka, 1950
Buku Teks