M Firman Afdhallah; Zulfa Emalia; Nurbetty Herlina Sitorus; Emi Maimunah; Arivina Ratih. Kesediaan Membayar (Willingness To Pay) Dan Surplus Konsumen Wisatawan Di Taman Nasional Way Kambas. IJEMA 2025, 2, 2432-2438.