Characterization of bitter leaf (Vernonia amygdalina Delile) extract, lemon (Citrus limon Osbeck), and honey in functional beverages makingMelanie Cornelia, Irene Agustini and Marcelia SugataBIO Web Conf., 169 (2025) 04005DOI: https://doi.org/10.1051/bioconf/202516904005