Muhammad Saifullah, A.A. et al. 2021. Pneumocystis jirovecii Pneumonia Mimicking COVID-19 Pneumonia In A Patient With Newly Diagnosed Advanced HIV Disease. Ulum Islamiyyah. 33, 2 (Apr. 2021), 107–116. DOI:https://doi.org/10.33102/uij.vol33no1.299.