Sekiyu haikyuu ni kansuru sanso no futou shinshutsu

Shouken yougo no hata no moto ni : sanso no futou shinshutsu to chuushou shounin no kiki

Nourin suisanyou sekiyu haikyuu mondai no keii

Senji sekiyu zousan ni kansuru kenpakusho

Sekiyu senbai ni kansuru kenkyuu

Mokutan no seisan narabini haikyuu ni kansuru jirei

Nihon teikoku no sekiyu jigyou : fu sekiyu koudoubori ni kansuru shokan

Sekiyu sekitan gasu ni kansuru kenkyuu

Hiryou haikyuu kaizen ni kansuru shiryou

Noukai no haikyuu kaizen shisetsu ni kansuru chousa

Chuushi keizai shinshutsu ni kansuru zadankai kiroku

Sekiyu haikyuu kikou shuusei to sono shinsou o tsuku

Sando toumen no sekiyu zousansaku ni tsuite

Kitakarafuto sekiyu riken ni kansuru shiryou

Kasanete toumen no sekiyu zousansaku ni tsuite

Kokunai sekiyu shigen kaihatsu ni kansuru oukyuu taisaku

Tousei ihan ni kansuru hanreishuu : fu juuyou busshi no haikyuu tousei

Kokunai sekiyu shigen kaihatsu ni kansuru yo no shin oukyuu taisaku

Sekiyu shouhi kisei to mokutan jidousha fukyuu sokushin ni kansuru hiken

Toumen no sekiyu zousansaku : joushinsho

Kokunai sekiyu shigen kaihatsu ni kansuru oukyuu taisaku kengi

Kokunai sekiyu shigen kaihatsu ni kansuru oukyuu taisaku yosan

Kokunai sekiyu shigen kaihatsu ni kansuru oukyuu taisaku kengi

Shoukou kumiai to nougyoukai tono haikyuu bunya chousei ni kansuru sankou shiryou

Sekiyu gasu choryuu tansanenganchuu no muki biryou seibun ni kansuru kenkyuu