Sholapurkar, Amar A., author
Jaypee Brothers Pvt. Ltd., 2011
Buku Teks
Berry, Ralph, author
London : ROUTLEDGE, 1994,
Buku Referensi
Sides, Charles H., 1952-, author
Cambridge University Press, 1992
Buku Teks
BMJ Publishing group, 1995
Buku Teks
Cash, Phyllis, author
Monarch Press, 1977
Buku Teks