Samosir, Heru Poppy, author
Fakultas Ekonomi dan Bisnis Universitas Indonesia, 2021
UI - Tesis (Membership)
oleh Sudargo Gautama... [et.al.]
FH-UNPAD, 1972
Buku Teks
National Council of Farmer Cooperatives , 1992
Buku Teks
Kislev, Yoav, author
World Bank, 1989
Buku Teks
Suparjo, author
Universitas Indonesia, 2014
UI - Disertasi (Membership)