SUWANTO, ANTONIUS, SUMARDI, MAGGY T HENAWIDJAJA, and T RESNAWATI P URWADARIA. 2011. “ISOLATION AND CHARACTERIZATION OF MANNANOLYTIC THERMOPHILIC BACTERIA FROM PALM OIL SHELL AND THEIR MANNANASE ENZYME PRODUCTION PROPERTIES”. BIOTROPIA - The Southeast Asian Journal of Tropical Biology, no. 25 (November). https://doi.org/10.11598/btb.2005.0.25.211.