Stafa, A., K. Margariti, and I. Kumbe. “The Study of Technology and the Production of Lyophilized Vaccine Against Swine Erysipelas”. ANGLISTICUM. Journal of the Association-Institute for English Language and American Studies, vol. 6, no. 2, Mar. 2017, pp. 59-65, https://anglisticum.org.mk/index.php/IJLLIS/article/view/1427.