Lestari Octavia, Sumbadra, and Moch Ilham Faris Baladraf. 2026. “Development of a Sugar-Free Functional Drink to Enhance Concentration in Healthy Young Adults: A Literature-Based Formulation and Trial Proposal”. ARMADA : Jurnal Penelitian Multidisiplin 4 (5):709-18. https://doi.org/10.55681/armada.v4i5.2153.