edited by Carl S. Shoup
Aldine Publishing, 1969
Buku Teks
Rosen, Harvey S.
McGraw-Hill, 2010
Buku Teks SO
Rolph, Earl R.
Ronald Press, 1961
Buku Teks
Lutz, Harley Leist
D. Appleton-Century, 1947
Buku Teks
Rosen, Harvey S.
Richard D. Irwin, 1989
Buku Teks SO