מאת Anifowoshe, Abass Toba, Ajibola Iyiola, Oluyinka, Olafimihan, Temitope Fatima, Olayinka Oladipo, Segun, Yakubu, Sunday Frank, Oyiyoza Abubakar, Thuwaibat, Ifedolapo Bakare, Rukayat, Akinseye, Kehinde Monica, Sulaiman, Faoziyat Adenike

מוסד: Universidad Estatal a Distancia

Repositorio: Portal de Revistas UNED