Riadi, Rina Masadah, and Berti J. Nelwan. 2021. “Expression of PD-L1 and Relationship With Tumor-Infiltrating Lymphocytes and Metastasis in Serous Ovarian Carcinoma”. International Journal of Sciences: Basic and Applied Research (IJSBAR) 57 (2):162-70. https://gssrr.org/index.php/JournalOfBasicAndApplied/article/view/12539.