Morrisey, George L., author
Addison-Wesley, 1987
Buku Teks
Polya, George, author
John Wiley & Sons, 1981
Buku Teks
Lipschutz, Seymour, 1915-2003, author
McGraw-Hill, 1982
Buku Teks
Hokanson, Clifford M., author
Interstate Printers, 1984
Buku Teks
Sg. Ferryanto, author
Satya Wacana, 1988
Buku Teks