Sutoyo, S., Siswoyo, S., Maududie, A., Wiranto, F., Rohim, M. A. ., Sulistyan, R. B. ., Azizah, Y., Amin, S., Sari, N. K. . and Muzakhar, K. (2026) “Engineering Coffee Cherry Pulp-derived Activated Carbon for Cellulase Immobilization and its Role in Regulating Non-Sterile Coffee Fermentation”, Journal of Mathematical and Fundamental Sciences, 58(1), pp. 19-31. doi: 10.5614/j.math.fund.sci.2026.58.1.2.