http://nipost.gov.ng/postcode.aspx
580
http://nipost.gov.ng/postoffice.aspx
4
http://nipost.gov.ngpostcode.aspx
1
http://nigeriapostcodes.com/index.php/welcome/rural
1
http://nipost.gov.ng/post_office.aspx
1
CiteRank
CiteRank - project for automatic evaluation of the sources in Wikipedia articles.