Ozcan, Yasar A.
Jossey- Bass, 2009
Buku Teks
Michael F. Drumond ... [et al.]
Oxford University Press, 2005
Buku Teks
Drummond, Michael F.
Oxford University Press, 1997
Buku Teks
Richardson, Paul
Aga Khan Univ.-URCCHS, 1993
Buku Teks
Munro, Barbara Hazard
Lippincott, 1986
Buku Teks SO