Gaika kansan kaikei no kokusai hikaku ni kansuru kenkyuu

Tetsudou senro no keizai hikaku ni kansuru kenkyuu

Shinbunshi ni kansuru seido no hikaku kenkyuu

Nihon no kaikei to kaikei kankyou no kokusaiteki chouwaka ni kansuru kenkyuu

Shikin keisansho no shomondai ni kansuru kenkyuu : beikoku nihon kankoku no hikaku kenkyuu o chuushin to shite

Kankyou eikyou hyouka seido ni okeru mitigēshon shuhou no kokusai hikaku kenkyuu

Nichieigo hikaku kenkyuu

Kaikei jouhou shisutemu no kiso riron ni kansuru kenkyuu

Kyuusai jigyou no hikaku kenkyuu

Bouseki gaisha no hikaku kenkyuu

Hikaku kenkyuu jichi no seizui

Higashiajia shokoku ni okeru kankyou seisaku no hatten katei ni kansuru hikaku kenkyuu

Eibun kaisetsu : hikaku kenkyuu

Touzai shisou hikaku kenkyuu

Hikaku nougyou : nougaku kenkyuu

Eidan no hikaku seidoronteki kenkyuu

Eidan no hikaku seidoronteki kenkyuu

Teikoku tetsudou tokubetsu kaikei ni kansuru kenkyuu

Teikoku tetsudou tokubetsu kaikei ni kansuru kenkyuu

Keisanki ni yoru hiyu rikai moderu ni kansuru kenkyuu

Hikaku kansoku ni yoru chihyoumen netsu shuushi moderu no fuhenka ni kansuru kisoteki kenkyuu

Karudenoraido no shokubutsu henkan ni kansuru kenkyuu

20dai kyoukenhou : hikaku kenkyuu

Suitchito karento firuta no sekkei ni kansuru kenkyuu

Kaisan koukotsu gyorui tokuni teigyorui no sesshoku katsudou ni kansuru hikaku seitaigakuteki kenkyuu