SUPRIADI, Bambang. Pengembangan Ekowisata Poncokusumo melalui Grand Strategy Matrix Analysis. Jurnal Pariwisata Pesona, [S. l.], v. 3, n. 2, p. 119–133, 2018. DOI: 10.26905/jpp.v3i2.2436. Disponível em: https://jurnal.unmer.ac.id/index.php/jpp/article/view/2436. Acesso em: 23 feb. 2025.