http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
Determinants of urban water demand in Khartoum State, Sudan
Thesis (Ph.D) -- Jabatan Pengajian Pembangunan, Fakulti Ekonomi dan Pentadbiran, Universiti Malaya, 2009.