1. SOYBEAN EXTRUDED PRODUCT: A RESPONSE SURFACE ANALYSIS
2. S Akhnazarova, and V. Kafarov, 1982 . Experiment optimization in chemistry and chemical engineering . Moscow. Mir Publishers. 312 p.
3. Extrusion of food proteins
4. AOAC., 1980 . Official Methods of Analysis , 13thed. Washington D. C.:Association of Official Analytical Chemists, pp1089 -1099 .