Pardono, Pardono, Dimas Rahadian Aji Muhammad, Isti Khomah, Hanifah Ihsaniyati, and Nuning Setyowati. “Peningkatan Brand Image Kopi Robusta Temanggung Berbasis Indikasi Geografis”. Warta LPM 25, no. 1 (January 30, 2022): 101–111. Accessed November 17, 2025. https://journals2.ums.ac.id/warta/article/view/602.