Self-HelpIranraenilowoOludare OlajubuAfolabi ojoIwe Asa ibile Yoruba ti Oloye Oludare Olajubu je Olootu, Oju-iwe 1-11, Ikeja; Longman Nigeria Limited, 1975.Ojogbon Afolabi Ojo.. 
Óas and published by the Department of lingistics and African languages, Obafemi Awolowo University, Ile-Ife.. 