LÓŃGĖ, Olu <br/><br/>
The Yoruba ancient, traditional number systems and a Yoruba new decimal number system  ancient: ewa,ogun, igba, egbewa, egbaawa, oke: new decimal ewa-alagbara  ix, 204p. 
Olu Longe 
 -  Original concepts  2016. 
<br/><br/><label>ISBN: </label>978-978-951-815-9