Johnson, George B., author
McGraw-Hill, 2018
Buku Teks
Joesten, Melvin, author
Thomson Brooks/Cole, 2007
Buku Teks
Thomas, Henry, author
Blakiston, 1946
Buku Teks
Vreede, Frans, author
Oxford University Press, 1953
Buku Teks
Johnson, George B., author
McGraw-HIll, 2003
Buku Teks