edited by Kathleen E. Hug
Office of International Infrmation Programs US Department of State, [Date of publication not identified]
Buku Teks SO
United States Department of State, 1991
Buku Teks SO
editor, Kathleen E. Hug; penerjemah, Sumantri Ar.
Office of International Infrmation Programs US Department of State, [Date of publication not identified]
Buku Teks SO
Raffel, Marshall W.
Wiley, 1984
Buku Teks
Shi, Leiyu
Jones & Bartlett Learning, 2014
Buku Teks