NEERAJ SHARMA, and RASHMI VAMIL. “Effect Of Different Heavy Metals And Ph On Α-Amylase Production From Bacillus Amyloliquefaciens”. International Journal of Pharma and Bio Sciences, vol. 3, no. 2, June 2012, pp. 545-50, https://ijpbs.net/index.php/journal/article/view/1417.