Muhammad Nur Ihsan Ayyasy, author
Sekolah Ilmu Lingkungan Universitas Indonesia, 2022
UI - Tesis (Membership)
Seery, John Evan
Westview Press , 1990
Buku Teks
Burns, James McGregor, author
Avon Book Division, 1961
Buku Teks
Greaves, H. R. G.
George Allen and Unwin, 1958
Buku Teks
Carnoy, Martin
Princeton University press, 1984
Buku Teks