Coal occurrence in the Jurassic Dhruma Formation in Saudi Arabia: Inferences on its gas and surface mining potential
INTERNATIONAL JOURNAL OF COAL GEOLOGY, Vol. 124, Kasım 2014, s. 6, ISSN: 0166-5162
AL MAHMOUD MOHAMMED JABER, İNAN SEDAT, AL DUAJJİ ABDULAZİZ