IBioko Sur yisifundazwe sase Nkabazwe Gini. "Censo de población 2015—República de Guinea Ecuatorial" (PDF). (Ngolimi lwe-Spenish). INEGE. p. 7. Kulandwe ngo-Mfumfu 19, 2020. Le-athikhili iyisigcino (isiNgisi: "a stub"). Ungakwazi ukusiza uWikipedia: ngokuyikhulisa.