editor, William B. Ward
JAI Press, 1987
Buku Teks SO
edited by William B. Ward, Frances Marcus Lewis
Jessica Kingsley Publishers, 1991
Buku Referensi
edited by William B. Ward
Jai Press , 1986
Buku Teks SO
by Randall R. Cottrell, James T. Girvan, Denise M. Seabert, Caile Spear, James F. McKenzie
Pearson Education, 2018
Buku Teks SO
Cottrell, Randall R.
Pearson, 2014
Buku Teks SO