OKOLIE, Okolie, Nwabueze Peter et al. Production and Commercialization of Mulled Zobo Drink. Direct Research Journal of Agriculture and Food Science, [S. l.], v. 13, n. 3, p. 97–108, 2025. Disponível em: https://journals.directresearchpublisher.org/index.php/drjafs/article/view/466. Acesso em: 28 aug. 2026.