Widodo, L., A. Asadul Islam, D. Widodo, and J. Wahyuhadi. “Patient’s Life Ability With Malignant Astrocytoma Grade IV”. International Journal of Sciences: Basic and Applied Research (IJSBAR), vol. 36, no. 8, Dec. 2017, pp. 31-35, https://www.gssrr.org/index.php/JournalOfBasicAndApplied/article/view/8514.