Mironer, Alan
McGraw-Hill, 1979
Buku Teks SO
Daugherty, Robert L. (Robert Long), 1885-
McGraw-Hill , 1984
Buku Teks SO
Daugherty, Robert L. (Robert Long), 1885-
McGraw-Hill, 1977
Buku Teks SO
Bertin, John J.
Prentice-Hall, 1984
Buku Teks SO
Olson, Reuben M.
International Textbook, 1961
Buku Teks SO