“Improvement of Thermostable Productivity ?-Amylase from Local Isolate Bacillus Licheniformis H14”. Baghdad Science Journal 7, no. 1 (March 7, 2010): 349–356. Accessed May 6, 2024. https://bsj.uobaghdad.edu.iq/index.php/BSJ/article/view/2856.