Siburian M, Situmorang C, Hutasoit ES, Nababan S, Lubis PKD. Product Innovation Practices of Ulos-Based Bandanas in the Creative Economy Value Chain. lms [Internet]. 2026Feb.28 [cited 2026Mar.5];5(1):33-40. Available from: http://journal.ainarapress.org/index.php/lms/article/view/1160