APRINAWATI; RESTU PRAYOGO, R. Halal Tourism: implication for tourism industry in Danau Toba, Indonesia. Ulum Islamiyyah, [S. l.], v. 34, n. 1, p. 1–14, 2022. DOI: 10.33102/uij.vol34no1.339. Disponível em: https://uijournal.usim.edu.my/index.php/uij/article/view/339. Acesso em: 3 jul. 2024.