Hollnagel, Erik, author
Academic Press, 1993
Buku Teks
Robertson, A.G.
Thomas Nelson & Sons , 1971
Buku Teks
Van Nostrand Reinhold, 1987
Buku Teks
edited by Bharat K. Bhargava
Van Nostrand Reinhold, 1987
Buku Teks
Halpern, Siegmund
Prentice Hall of India, 1979
Buku Teks