Siregar , Misbah, Minda Sari Lubis, Rafita Yuniarti, and Zulmai Rani. “Formulation, Evaluation and Antioxidant Activity of Used Nano Tea Bags Solid Soap”. Journal of Pharmaceutical and Sciences 8, no. 4 (November 16, 2025): 2641–2661. Accessed November 24, 2025. https://journal-jps.com/new/index.php/jps/article/view/1055.