Reynolds, Charles W., author
Wadsworth, 1986
Buku Teks
Husni Susanto, author
Elex Media Komputindo, 1990
Buku Teks
Slater, Lucy Joan, author
Cambridge Univeristy Press, 1976
Buku Teks
Ahmad Munawar, author
Beta Ofset, 2004
Buku Teks
Mattessich, Richard, author
Richard D. Irwin, 1964
Buku Teks