Lipsey, Robert E.
Price and quantity trends in the foreign trade of the United States / by Robert E. Lipsey
Princeton University Press , 1963
 Buku Teks
Krone, robert M.
Systems analysis and policy sciences : theory and practice / Robert M. Krone
John Wiley & Sons, 1980
 Buku Teks
Rekonstruksi kelembagaan dan uji teknologi pemupukan : kebijakan strategis mengatasi kelangkaan pupuk ; institutional reconstruction and fertilization technology case: strategic policy to overcome the scarcity of fertilizers
 Artikel Jurnal
Perang Iraq-AS: hegemoni baru AS di Timur Tengah dan dampak globalnya
edited by Mohammad Safari, Almuzzammil Yusuf
Center for Middle East Studies, 2003
 Buku Teks
Sutter, Robert G. , author
Politik luar negeri RRC = Chinese foreign policy / Robert G. Sutter; Alih bahasa, Rizal Sukma
Abardin, 1991
 Buku Teks
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