Tranducer setting on test RC beam, dept of civil engineering, univ of Toronto, CANADA 
Hart housefor lodging,5th Feb 1997, unv of Toronto, Toronto, CANADA 
WORLD BIGGEST BOOK STORE , 8TH Feb , 1997, TORONTO .,, CANADA 
toronto university with background of CN tower, 17th Feb 1997, Toronto, CANADA 
Niagara Fall, Tronto , 19th Feb 1997, toronto, CANADA 
ki sang son, and instructor, 8th Feb 1997, canada construction safety association, Toronto, CANADA
Ki Sang SON, canada national construction institute, 18th Feb 1997, OTTAWA, CANADA
Dr. Gerry's lecture at SNUT(Seoul National University of Technology)
    
CN Tower , univ of TORONTO,Aug 2003
Greece Restaurant , Dr Habbib, Canada national construction institute,Ottawa,Aug 2001
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