Schroeder, Richard C.
Kantor Program Informasi Internasional Departemen Luar Negeri Amerika Serikat, [date of publication not identified]
Buku Teks
Departemen Luar Negeri Amerika Serikat, 1991
Buku Teks
editor, Kathleen E. Hug; penerjemah, Sumantri Ar ... [et al.]
Office of International Infrmation Programs US Department of State, [Date of publication not identified]
Buku Teks SO
B.P. Paulus
Alumni, 1979
Buku Teks SO
Berman, Harold J.
Tatanusa, 2008
Buku Teks SO