Harrington, John Malcolm, author
Blackwell Scientific Publications, 1994
Buku Referensi
Guttmann, H. Peter, author
McGraw-Hill, 1976
Buku Teks
Hunt, Alfred
N.Y. John Wiley & Sons , 1977
Buku Teks
edited by William J. Rothwell, Roland Sullivan, Gary N. McLean ; with a foreword by Kathleen D. Dannemiller and Robert W. Jacobs
Pfeiffer, 1995
Buku Teks
Porteous, Murray
Buku Teks