Dobson, Rosemary
Angus & Robertson, 1978
Buku Teks
edited by Keith S. Dobson and Deborah J.G. Dobson
Hogrefe and Huber , 1993
Buku Teks
Dobson, James
Kingsway Pubb., 1987
Buku Teks
Lewis, Roger K
MIT Press, 2013
Buku Teks
Inada, Kenneth K.
G.K. Hall Press, 1985
Buku Referensi