TY - GEN AU - Hettiwatte, Manil Chathuranga AU - Prof. P.G.R. Dharmaratne AU - Eng. P.V.A. Hemalal TI - Optimization of Sri Lankan underground graphite mining methods, from a view point of rock mechanics and cost PY - 2014///] KW - EARTH RESOURCES ENGINEERING - Thesis KW - MSc (Major Component Research) N1 - TH2761 UR - http://dl.lib.mrt.ac.lk/handle/123/10944 ER -