Bidirectional Conversion Models to Harmonize Total Phenolic and Flavonoid Content Analysis in Medicinal Plant Extracts. Tropical Journal of Natural Product Research , [S. l.], v. 9, n. 12, p. 6026 – 6032, 2025. DOI: 10.26538/tjnpr/v9i12.16. Disponível em: https://tjnpr.org/index.php/home/article/view/7922. Acesso em: 1 jan. 2026.