Ferguson, John H.
McGraw-Hill, 1981
Buku Teks
Ferguson, John H.
McGraw-Hill, 1961
Buku Teks
Patrick, John
Macmillan Publishing Company, 1984
Buku Teks
Todd, Lewis Paul
Harcourt, Brace & World, 1961
Buku Teks
Todd, Lewis Paul
Harcourt Brace Jovannovich, 1972
Buku Teks