No Inv.: 316/AF/Perp/94/1c
The latest achievements of earthquake prediction via radio communication systems, by the world's leading authority Prof. Hayakawa is one of the world leaders in the field of seismo-electromagnetics for EQ prediction and this area of research is still evolving.
No Inv.: 89538-89539/PSM/Perp/04/2c
No Inv.: 129155/S/Perp/11/1c
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No Inv.: 133930/SM/Perp/12/1c
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Bibliografi : hlm. 779 - 790