Harianja, Pantun. “Halal Tourism Model Based On Local Wisdom In Bukit Lawang As One Of The Branding Efforts Towards Excellent Primadona North Sumatra”. International Journal of Science, Technology & Management 3, no. 6 (November 12, 2022): 1676-1687. Accessed November 28, 2024. https://ijstm.inarah.co.id/index.php/ijstm/article/view/666.