“The Exclusivity Strategy of Cikole Lembang Luwak Coffee in the Digital Era: A Case Study: Educational Tourism, Premium Prices, and Cross-Border Buyers: Steategi Eksklutivitas Kopi Luwak Cikole Lembang di Era Digital: Studi Kasus Wisata Edukasi, Harga Premium, dan Pembeli Lintas Negara”, pssh, vol. 9, pp. 54–63, Jul. 2026, doi: 10.21070/7v4ym365.