SIDABUTAR, A. .; VANY OCTAVIANY. Pengembangan Wisata Halal di Kawasan Danau Toba: Persepsi Pelaku Usaha Wisata Hotel dan Restoran. Al-Kharaj: Jurnal Ekonomi, Keuangan & Bisnis Syariah, [S. l.], v. 6, n. 4, p. 4312–4322, 2024. DOI: 10.47467/alkharaj.v6i4.884. Disponível em: https://journal-laaroiba.com/ojs/index.php/alkharaj/article/view/884. Acesso em: 17 may. 2026.