AL-MALABEH, A.; KEMPE, S.; HENSCHEL, H.-V.; HOFMANN, H.; TOBSCHALL, H. J. The Possibly Hypogene Karstic Iron Ore Deposit of Warda Near Ajloun (Northern Jordan), its Mineralogy, Geochemistry and Historic Mine. Acta Carsologica, Ljubljana, Slovenija, v. 37, n. 2-3, 2008. DOI: 10.3986/ac.v37i2-3.149. Disponível em: https://ojs.zrc-sazu.si/carsologica/article/view/149. Acesso em: 7 may. 2024.