China official annual report 1981
Hongkong Kingsway International Publications 1981
 Buku Referensi
Annual report and statement of accounts for the year ended 31st December, 1981 / Central Bank of Nigeria
Central Bank of Nigeria , 1982
 Buku Teks
Annual Report 1999/World Bank
Washington, D.C. World Bank 1999,
 Buku Teks
UNICEF annual report 1994
United Nations Children`s Fund
UNICEF , 1994
 Buku Teks
Annual report 1999
Institute of Social Studies
Institute of Social Studies, 2000
 Buku Teks