Setiawan J, Nazhif N, Andi A. Banten Coffee Marketing Strategy for Putra Banten UKM Based on Blue Ocean Strategy. MSR [Internet]. 2023 Apr. 3 [cited 2026 May 31];2(1):90-101. Available from: https://www.smanagementscienceresearchjournal.com.msjr.my.id/index.php/msr/article/view/48