Cabeza, Roberto
Oxford University Press, 2016
eBooks
edited by Ronald Ross Watson
CRC Press, Taylor & Francis Group, 2009
Buku Referensi
Regula H. Robnett , Walter C. Chop, edited
Jones and Bartlett Learning, 2015
Buku Teks SO
Victoroff, Jeff
Bantam Books, 2003
Buku Teks SO
Sutherland, Violette Cutter
W.B. Saunders, 1970
Buku Teks SO