Salmela, John H.
Human Kinetics Books, 1991
Buku Referensi
Fischer, Joel
The Free Press, 1994
Buku Teks
Donnelly, Glories Ferraro
Medical Economics Books, 1984
Buku Teks
Adams, Francis V.
McGraw-Hill, 2007
Buku Teks
Glasstone, Samuel, 1897-1986
D. Van Nostrand , 1958
Buku Teks