Firdaus, Handika, and Rita Ambarwati Sukmono. “Enhancing Sugar Sales Through Quality Improvement and Customer Preferences: Meningkatkan Penjualan Gula Melalui Peningkatan Kualitas Dan Preferensi Pelanggan”. Indonesian Journal of Innovation Studies 25, no. 1 (January 10, 2024): 10.21070/ijins.v25i1.1089. Accessed April 11, 2025. https://ijins.umsida.ac.id/index.php/ijins/article/view/1089.