Byars, Edward Ford, 1925-, author
International Textbook, 1969
Buku Teks
Byars, Edward Ford, 1925-, author
Harper & Row, 1983
Buku Teks
Muvdi, B.B., author
Macmillan, 1980
Buku Teks
Peterson, Aldor C., author
Allyn and Bacon, 1981
Buku Teks
Snyder, Robert D., author
McGraw-Hill, 1973
Buku Teks