Soebagio, and R. Moh. Yogiartono. “The Effectiveness Of The Long-Term Acrylic Resin Plate Immersion In Various Concentrations Of Black Tea On Color Change Difference”. International Journal of Psychosocial Rehabilitation 24, no. 9 (November 30, 2020): 3611–3622. Accessed January 21, 2026. https://psychosocial.com/index.php/ijpr/article/view/9124.