Behind the Notifications: Direct Marketing Strategies via WhatsApp at Cikole Lembang Luwak Coffee Agrotourism: Di Balik Notifikasi: Strategi Pemasaran Langsung via WhatsApp di Agrowisata Kopi Luwak Cikole Lembang. pssh. 2026;9(1):571-577. doi:10.21070/xmjgx843