Socheat Kem และ Sunthorn Pumjan. (2013) A PRE-FEASIBILITY STUDY OF LIMESTONE QUARRY DEVELOPMENT FOR CEMENT INDUSTRY IN CAMBODIA. Chulalongkorn University:ม.ป.ท.Socheat Kem และ Sunthorn Pumjan. 2013. A PRE-FEASIBILITY STUDY OF LIMESTONE QUARRY DEVELOPMENT FOR CEMENT INDUSTRY IN CAMBODIA. ม.ป.ท.:Chulalongkorn University;Socheat Kem และ Sunthorn Pumjan. A PRE-FEASIBILITY STUDY OF LIMESTONE QUARRY DEVELOPMENT FOR CEMENT INDUSTRY IN CAMBODIA. ม.ป.ท.:Chulalongkorn University, 2013. Print.