Religion
Korean Overseas Information Service, 1978
 Buku Teks
Naisbitt, John
Global paradox
Avon Books, 1994
 Buku Teks
Naisbitt, John
Global paradox
Avon Books, 1994
 Buku Teks
The economics of poverty : an American paradox
edited by Burton A. Weisbrod
Prentice-Hall, 1965
 Buku Teks
The economics of poverty : an American paradox
edited by Burton A. Weisbrod
Prentice-Hall, 1965
 Buku Teks