%0 Journal Article %T The Evaluation of Drillability and Support System Type in Western to Southern Part of Mashhad Rock Mass Based on Rmi Classification %A Afshar, Salameh %A Ghafoori, Mohammad %A Lashkaripour, Gholam Reza %A Hafezi Moghaddas, Naser %J Indian Journal of Natural Sciences %@ 0976-0997 %D 2015