Kessenka shokuba kiritsu kakuritsu no jissai : tani sangyou houkokukai no butai soshiki to kiritsu kunren

Gakudoutai kunren no kousou to jissai

Sangyou jinji no soshiki to jissai

Gakkou seishounendan no soshiki to kunren

Shokugyouka ni taisuru kyouju oyobi kunren no jissai

Sangyou sasshin no riron to jissai : sangyou tousei no soshiki to unyou