Allen, Frederick Lewis, author
Bantam Book, 1961
Buku Teks
Allen, Frederick Lewis, author
Harper & Row, 1952
Buku Teks
Allen, Frederick Lewis
Endang, 1955
Buku Teks
Spiegel, Murray R., author
McGraw-Hill , 1986
Buku Teks
Phillips, Charles L., author
Prentice-Hall, 2003
Buku Teks