Agyeman-Duah ni oye MA lati Ile-eko giga ti Wales, MSc ni Idagbasoke Isowo lati Ile-iwe ti Ila-oorun ati Awon eko Afirika (SOAS), University of London  ati MSc kan ninu Itan-akoole ti Awon ibatan Kariaye lati Ile-iwe London ti Imo-oro ati Imo-oro Oselu .. 
Ó setan ní ọdún 1980 pẹ̀lú Second Class Upper.Onanuga ṣiṣẹ́  fún Practions Partners ní Ììbẹ̀rẹ̀pẹ̀pẹ̀ ọdún 1982 ó sì darapọ̀ mọ́ ilé-iṣẹ́ amóhùnmáwòrán ti Ogun State Television gẹ́gẹ́ bi òṣìṣẹ́ Ìbẹ̀se ní Oṣù Kẹfà, Ọdún 1982.Ní Oṣù Keje, Ọdún 1983, ó tẹ̀síwájú lọ sí The Guardian ní Èkó gẹ́gẹ́ bí alápolongo akọ̀ròyìn ó sì kúrò ní ní ní mẹ́tàdínlógún lẹ́yìn pé Watan Mokúwí. tí ìgbìyànjú rẹ̀ kùnà, ońnnu lógun lọ darapọ̀ mọ́ National Concord ní Oṣù kini, Ọdún 1985 gẹ́gẹ́ bi ọ̀gá akọ àwọn ìròyìn.. 