1. Afifah, D. N., Sulchan, M., Syah, D., Yanti, & Suhartono, M. T. (2013). Proteolytic and fibrinolytic activities of several microorganisms screened from Red Oncom and Gembus, Indonesian fermented soybean cakes. Abstract No. 1.1 presented at 4th annual international symposium on wellness, healthy lifestyle and nutrition. Yogyakarta.
2. Afifah, D. N., Sulchan, M., Syah, D., Yanti, Suhartono, M. T., & Kim, J. H. (2014). Purification and characterization of a fibrinolytic enzyme from Bacillus pumilus 2.g isolated from gembus, an Indonesian fermented food. Preventive Nutrition and Food Science, 19(3), 213–219.
3. Afifah, D. N., Sulchana, M., Syah, D., Yanti, & Suhartono, M. T. (2015). The use of Red oncom powder as potential production media for fibrinogenolytic protease derived from Bacillus licheniformis RO3. The first international symposium on food and agro-biodiversity (ISFA2014). Procedia Food Science, 3(2015), 453–464.
4. Akuzawa, R., & Surono, I. S. (2002). Fermented milks of Asia. In H. Roginski, J. W. Fuquay, & P. F. Fox (Eds.), Encyclopedia of dairy sciences (pp. 1045–1048). London: Academic Press Ltd.
5. Amin, A. M., Jaafar, Z., & Khim, L. N. (2004). Effect of salt on tempoyak fermentation and sensory evaluation. Journal of Biological Sciences, 4(5), 650–653.