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Holmes & Meier, 1979
Buku Teks SO
Larasati Meidiana
Fakultas Ilmu Pengetahuan Budaya Universitas Indonesia, 2015
UI - Makalah dan Kertas Kerja
Pentony, DeVere E.
Chandler Pub. Co., 1962
Buku Teks SO
Institute of International Relations, National Chengchi University, 1978
Buku Teks SO
Skilling, Gordon H.
Thomas Y. Crowell, 1966
Buku Teks SO