Salmela, John H.
Human Kinetics Books, 1991
Buku Referensi
Jean M. Williams, editor
Mayfield Pub. Co, 2001
Buku Teks
edited by Jean M. Williams, Vikki Krane
McGraw-Hill, 2015
Buku Teks
Bakker, F.C.
John Wiley & Sons, 1990
Buku Teks
Cashmore, Ellis
Routledge, 2002
Buku Teks