Olds, Anita Rui
McGraw-Hill, 2000
Buku Teks
by Karen A. Piotrowski ... [et al.]
Elsevier Mosby, 2011
Buku Teks SO
King, Maurice Henry
Univ. of Malaya, 1979
Buku Teks SO
Lewer, Helen
Macmillan, 1983
Buku Teks SO
Aronson, Susan S.
HarperCollins Publisher Inc., 1991
Buku Teks