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Ken Hirata

b. 1931 · 2 books

Books by Ken Hirata

Kigyōkan enerugī kyōdō riyō ni
Kigyōkan enerugī kyōdō riyō ni kansuru kenkyū
1983
Kakuyūgōro no netsukōgakuteki
Kakuyūgōro no netsukōgakuteki shomondai ni kansuru kenkyū
1980