RaƱoa, Diana Rose, Lumibao, Candice, Roxas, Jennifer, San Luis, Boris, AND Hedreyda, Cynthia. " Comparison of Conventional Plate Assays with DNA-based Screening Protocols for Protease and Cellulase Production from Putative Bacillus Isolates" Science Diliman: A Journal of Pure and Applied Sciences [Online], Volume 17 Number 1 (2 July 2007)