Pehlivani, K., and A. Elshani. “Production of Higher Alcohols During Beer Fermentation With Different Yeast Concentration”. ANGLISTICUM. Journal of the Association-Institute for English Language and American Studies, vol. 4, no. 4, Dec. 2016, pp. 29-31, https://www.anglisticum.org.mk/index.php/IJLLIS/article/view/1222.