Gracia RH, Sutrisno AA. Band Merchandise Design "Double Degree" As A Promotional Medium To Increase Brand Equity and Fan Reach. lg [Internet]. 2025 Nov. 7 [cited 2026 Jun. 7];1(2):1-10. Available from: http://ojsdummy.uhnsugriwa.ac.id/index.php/lg/article/view/4931