Entwistle, Jill
Roto Vision SA, 2000
Buku Referensi
Martin Kahanec, editor; Klaus F. Zimmerman, editor
Edward Elgar, 2011
Buku Teks
Michel, Lou
Van Nostrand Reinhold, 1996
Buku Teks
Entwistle, Jill
New York Roto vision SA 1999,
Buku Referensi
Entwistle, Jill
Roto vision SA, 1999
Buku Referensi