oleh Departemen Kesehatan RI
Depkes, 2002
Buku Teks
edited by William B. Ward
JAI Press, 1986
Buku Teks SO
SAGE , 2007
Buku Teks SO
Maya Rom Korin, author
Springer, 2018
Buku Teks SO
by Randall R. Cottrell, James T. Girvan, Denise M. Seabert, Caile Spear, James F. McKenzie
Pearson Education, 2018
Buku Teks SO