Kohara, Jiro, preface
Meisei Publications, 1997
Buku Referensi
edited by Joseph De Chiara
McGraw-Hill, 2002
Buku Referensi
Kubba, Sam, author
McGraw-Hill, 2003
Buku Teks
Panchyk, Katherine
Van Nostrand Reinhold,, 1983
Buku Teks
Vidiella, Alex Sanchez, author
Quayside, 2008
Buku Referensi