Leriaka : ētoi chōrografia tēs nēsou Lerou / ekdidimena Kyriou Nikolaou G. Tsigada.Dionysios I. Oikonomopoulos1888ZIP
Narrative of an exploring voyage up the rivers Kwóra and Bínue: commonly known as the Niger and Tsádda in 1854William Balfour Baikie1966PDF
Narrative of the Niger, Tshadda & Binuë exploration, including a report on the position and prospects of trade up those rivers, with remarks on the malaria and fevers of western Africa.Thomas Hutchinson1855ZIP