prepared for the Office of Science and Technology Development Board ; by Science and Technology Development Program, Thailand Development Research Institute (TDRI) and Chula Unisearch, Chulalongkorn UniversityThailand Development Research Institute Foundation[1989]
by Science and Technology Development Program, Thailand Development Institute (TDRI) and Chula Unisearch, Chulalongkorn UniversityThailand Development Research Institute Foundation1990