“Bacillus Licheniformis BT5.9 Isolated from Changar Hot Spring, Malang, Indonesia, As a Potential Producer of Thermostable ?-Amylase”. Tropical Life Sciences Research 24, no. 1 (July 31, 2013): 71–84. Accessed July 3, 2024. https://ejournal.usm.my/tlsr/article/view/tlsr_vol24-no-1-2013_7.