SAHLAN, M., Y. DESIANDINI, M. IQBAL, N. WIDHYASTUTI, A. MALIK, and S. SETYAHADI. “Cultivation Process Optimization Of Recombinant Bacillus Subtilis Apoptin”. Microbiology Indonesia, vol. 7, no. 4, Apr. 2014, p. 3, doi:10.5454/mi.7.4.3.