Gor`kiy, Aleksey Maksimovich
Foreign Languages Publishing, [date of publication not identified]
Buku Teks
Duddy Zein
Armico, 1987
Buku Teks
Marchand, Trevor H. J.
Routledge, 2012
eBooks
Avriel, Mordecai
Prentice-Hall, 1976
Buku Teks
Marcus, Mordecai
Holt Rinehartv , 1963
Buku Teks SO