Roberts, Russell D.
The choice: a fable of free trade and protectionism
Pearson Prentice Hall, 2007
 Buku Teks
Wacana dan implementasi proteksionisme perdagangan internasional di sektor pertanian melalui berbagai tema fair trade = Discourse and implementation of international trade protectionism in the agricultural sector through various themes of fair trade
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2014
 UI - Tugas Akhir
Proteksionisme di tengah liberalisasi perdagangan dunia = Protectionism in the liberalization of world trade
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2014
 UI - Tugas Akhir
U.S.-China educational exchange : perspectives on a growing partnership
edited by Shepherd Laughlin
The Institute of International Education, 2008
 Buku Teks
Roemer, John E
U.S.-Japanese competition in international markets : a study of the trade-investment cycle in modern capitalism /​ John E. Roemer.
Institute of International Studies, University of California, 1975
 Buku Teks