Simarmata, Yettrie, Darwin Syamsul, Rani Ardiani, and Jefri Naldi. 2024. “Formulation of Red Spinach Leaves (Amaranthus Tricolor L.) Ethanol Extract Gel Dosage Form on Anti-Aging Activity”. Jurnal Biologi Tropis 24 (1b):25-34. https://doi.org/10.29303/jbt.v24i1b.8061.