Analysis of vitamin C in probiotic yoghurt with the addition of podang urang mango (Mangifera indica L.)Dyah Nurul Afiyah, Irma Isnafia Arief, Tuti Suryati and Riska Nurtantyo SarbiniE3S Web Conf., 335 (2022) 00007DOI: https://doi.org/10.1051/e3sconf/202233500007