Unesco Regional Office for Education in Asia and the Pacific, 1986
Buku Teks
Unesco , 1986
Buku Teks
Lely Wahyuniar, author
1995
UI - Tesis (Membership)
Schulman, Robert A, author
Rodale, 2007
Buku Teks
edited by Michael Shayer
Open University Press, 2002
Buku Teks