edited by Jiri Valenta, Esperanza Duran
Allen & Unwin, 1987
Buku Teks
Collins, Joseph
Grove Press, 1986
Buku Teks
Walker, Thomas W.
Westview Press, 1991
Buku Teks
Walker, Thomaw W.
Westview Press, 1986
Buku Teks
Dickey, Christopher
Simon & Schuster, 1987
Buku Teks