SUAMADI, Suamadi; SIDAURUK, Tumiar. Kajian Potensi Wisata Air Terjun Ponot di Desa Tangga Kecamatan Aek Songsongan Kabupaten Asahan. JURNAL GEOGRAFI, [S. l.], v. 5, n. 1, p. 93–101, 2013. DOI: 10.24114/jg.v5i1.8088. Disponível em: http://103.242.233.34/index.php/geo/article/view/8088. Acesso em: 20 dec. 2024.