M. A. Shata, H.; M. Noor El Deen, A.; A. M. Abdelwahed, N.; A. M. Farid, M. STATISTICAL OPTIMIZATION OF ERYTHROMYCIN PRODUCTION BY Saccharopolyspora Erythraea UNDER SOLID STATE FERMENTATION OF AGRO-INDUSTRIAL MATERIALS USING RESPONSE SURFACE METHODOLOGY. J microb biotech food sci 2018, 8, 692-697.