Chiuman, Linda, Hestina, Nicolas Xavier Ongko, and Setia Budi Tarigan. 2023. “Dermapen Treatments for Healing Pockmarked Skin in Male Wistar Rats (Rattus norvegicus): A Study Comparing Platelet-Rich Plasma With Salmon DNA Serum”. Jurnal Penelitian Pendidikan IPA 9 (12):10733-39. https://doi.org/10.29303/jppipa.v9i12.6000.