Oloyede, O.B, Abubakar, F.A , trans. 2013. “Production and Activity of Cellulase from Aspergillus Niger Using Rice Bran and Orange Peel As Substrates”. International Journal of Scientific Research and Management (IJSRM) 1 (5). https://ijsrm.net/index.php/ijsrm/article/view/90.