Iqbalsyah, T. M., U. Amna, R. S. Utami, F. Oesman, and F. -. “Concomitant Cellulase and Amylase Production by a Thermophilic Bacterial Isolate in a Solid-State Fermentation Using Rice Husks”. Agriculture and Natural Resources, vol. 53, no. 4, Aug. 2019, pp. 327-33, https://li01.tci-thaijo.org/index.php/anres/article/view/228710.