Christian Soe
McGraw-Hill, 2004
Buku Teks SO
edited by Henry Mayer
F.W. Chesire, 1966
Buku Teks SO
edited by Henry Mayer, Helen Nelson
Longman Chesire, 1978
Buku Teks SO
Thomson Wadsworth, 2003
Multimedia
edited by Roy C. Macridis, Bernard E. Brown
Dorsey Press, 1968
Buku Teks SO