Rittiboon, A., and W. Katemai. “Production of Starch-Digesting Glucoamylase from Aspergillus niger ATCC 10864”. CURRENT APPLIED SCIENCE AND TECHNOLOGY, vol. 4, no. 1, Mar. 2018, pp. 108-1, https://li01.tci-thaijo.org/index.php/cast/article/view/151863.