WORK SHOP ON ASH MANAGEMENT & CONTERMARUES AGAINST CONTAMINATION
IN THAILAND AT DEPT. OF INDUSRTIAL WORKS , BANGKOK, THAILAND
PATICATION VIA INTERNT ON MARCH 19,  2021
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REQUIREMENT IN SETTING THE ENVIRONMENALSAFETY QUALITY OF RECYCLED MATERIAL IN CONSTRUCTION 

BY DR. HIROFUMI SAKANAKURA, SECTION CHIEF, NATIONNAL INSTITUTES FOR ENVIRONMENTAL STUDIES

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SOIL & GROUNDWATER CONTAMINATION 

BY MR. OSAMU YAMAMOTO FORMER MANAGER OSAKA SCIENCE & TECHNOLOGY CENTER