1. AACC. (1990). Approved methods of the American Association of Cereal Chemists. USA: American Association of Cereal Chemists.
2. AACC. (1995). Approved methods of the American Association of Cereal Chemists. USA: American Association of Cereal Chemists.
3. Alison, B., Diane, W. L., & Michnowski, H. J. (1983). Protein fortification of cookies, crackers and snack bar: Uses and needs. Cereal Food World, 28, 441–444.
4. AOAC. (1990). Official methods of analysis (15th ed.). Washington: Association of Official Analytical Chemists.
5. Ashraf, H. L., & Siandwazi, C. (1986). Evaluation of gingerbread cookies supplemented with sunflower protein concentrates. Journal of Food Science, 51, 1102–1103.