Lee J. H., Shim J. H., Kim J. H., Kang S. P., Choi S. J., Kim M. H., 2001, An Experimental
Study on the Properties of Concrete Using the Bottom Ash as a Part of Fine Aggregate.,
AIK 2001 Spring Conference. 27 October 2001. Korea, Cheonan: Architectural Institute
of Korea (AIK), pp. 359-362 (In Korean)