OECD, 1975
Buku Teks
Yusuf Wicaksono Budisatrio
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2022
UI - Skripsi (Membership)
Wageningen The Institute , 1979
Buku Teks
THe OPEC fund for International Development
New York : THe OPEC fund for International Development, 1998,
Buku Referensi
Library of Conggress 1988, 1988
Buku Teks