Ririn Endah Stianingrum Suprapto Baan
Fakultas Ilmu Sosial dan Ilmu Politik Universitas Indonesia, 2014
UI - Tesis Membership
Belgian Business Federation, 1974
Buku Teks
Sagala, Lucky Sonang
Universitas Indonesia, 2015
UI - Tesis (Membership)
Carr-Saunders, A.M.
Clarendon Press, 1933
Buku Teks
International Trade Centre Uctad/GATT, 1971
Buku Teks