Nirmala Putri Soranta (2021) “Effects of Hyperbaric Oxygen Therapy on MMP-8 Saliva Levels in Chronic Periodontis: A Preliminary Research”, International Journal of Sciences: Basic and Applied Research (IJSBAR), 60(4), pp. 45–55. Available at: https://www.gssrr.org/JournalOfBasicAndApplied/article/view/13346 (Accessed: 13 September 2025).