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Buku Teks
Burk, Marguerite C., author
Food and Agriculture Organization of the United Nations, 1980
Buku Teks
Lumumba, Patrice, author
Program Pascasarjana Universitas Indonesia, 1999
UI - Tesis (Membership)
Schramm, Wilbur, author
Stanford University Press , 1964
Buku Teks
Schramm, Wilbur, author
Stanford Universuty Press, 1967
Buku Teks