S. Bensmail, A. Mechakra, and F. Fazouane-Naimi, “OPTIMIZATION OF MILK-CLOTTING PROTEASE PRODUCTION BY A LOCAL ISOLATE OF ASPERGILLUS NIGER FFB1 IN SOLID-STATE FERMENTATION”, J microb biotech food sci, vol. 4, no. 5, pp. 467–472, Apr. 2015.