SIMARMATA, V.; DAMANIK, D.; PURBA, D. G. Analisis Willingness to Pay dan Persepsi Wisatawan Terhadap Konservasi Gajah Aek Nauli di Kabupaten Simalungun. Jurnal Ekuilnomi, [S. l.], v. 4, n. 1, p. 1–13, 2022. DOI: 10.36985/ekuilnomi.v4i1.332. Disponível em: https://jurnal.usi.ac.id/index.php/ekuilnomi/article/view/332. Acesso em: 10 may. 2024.