Nikolla, Jolanda, and Hasan Hafizi. 2017. “What Is the Role of Complications and Comorbidities in Combined Pulmonary Fibrosis and Emphysema Syndrome”. ANGLISTICUM. Journal of the Association-Institute for English Language and American Studies 6 (3):43-51. https://anglisticum.org.mk/index.php/IJLLIS/article/view/1431.