Birpuri, Shakuntla Sharma
Jaypee Brothers Medical pub., 2012
Buku Teks
Henderson, Virginia
Macmillan, 1978
Buku Teks SO
edited by Mandy Sheppard
Elsevier, 2006
Buku Teks
Sheehy, Susan Budassi
Mosby, 1992
Buku Teks
by Nancy L. Diekelmann [and others]
McGraw-Hill, 1980
Buku Teks SO