AMBARSARI, HANIES, and KENJI SONOMOTO. 2013. “Production of Acetone, Butanol and Ethanol As Bioenergy Source Materials by Clostridium Saccharoperbutylacetonicum N1-4 (ATCC 13564) Using Different Substrates”. Microbiology Indonesia 7 (3):4. https://doi.org/10.5454/mi.7.3.4.