STRATEGI PERSONALISASI PRODUK UMKM KULINER TRADISIONAL DI YOGYAKARTA DENGAN METODE RFM DAN K-MEANS CLUSTERING. JSSR [Internet]. 2025 Sep. 22 [cited 2026 Apr. 28];8(3):5528-34. Available from: https://jurnal.goretanpena.com/index.php/JSSR/article/view/4324