1 |
KIGAM, 2014 : Year book of minerals statistics, p.19, KIGAM
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2 |
KIGAM, 2014 : Year book of minerals statistics, p.38, KIGAM
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3 |
Ministry of the land and Transportation, 2015 : Report on the Demand planning of the aggregate
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4 |
The Korea Aggregate Association, 2015 : Unpublished data of the Korea Aggregate Association
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5 |
Biography publishing committee on Chung In-Uk, 2000 : A pioneer Chung In-Uk, p.331, Doseo publishing Co., 2000. 3. 25.
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6 |
Minoru Nakano, 1969 : "Aggregate industry around Han-Kang river", J. of the Japanese Institute of aggregate resources, No.3, pp.31-32, 1969, The Japanese Institute of aggregate resources
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7 |
Sampyo group, 2015 : Guidance of Sampyo group, Sampyo industry Co., 2015.
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8 |
Whaseong aggregate quarry, 2016 : Unpublished data of the Whaseong aggregate quarry
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