Astien, Astien, Nany Hairunisa, Nugroho Abikusno, Revalita Abikusno, Nadifa Agil, and Febrina T. “Metachronous Multifocal Osteosarcoma After 5-Month Therapy: Metastasis or Other Primary Lesion?”. Jurnal Biomedika dan Kesehatan 6, no. 3 (December 31, 2023): 347–353. Accessed May 10, 2024. https://jbiomedkes.org/index.php/jbk/article/view/433.