Sando toumen no sekiyu zousansaku ni tsuite

Kasanete toumen no sekiyu zousansaku ni tsuite

Toumen no sekiyu zousansaku : joushinsho

Firippin no sekiyu ni tsuite

Wagakuni toumen no sekiyu mondai

Gyogyouyou sekiyu no shouhi kisei ni tsuite

Kokusaku ni odoru sekiyu

Kitakarafuto ni okeru waga sekiyu kigyou ni taisuru sorenpou no taido ni tsuite

Taikoku no sangyou ni tsuite

Wagakuni no sangyou ni tsuite

Indo no genjou ni tsuite

Sekiyu haikyuu ni kansuru sanso no futou shinshutsu

Suisan shokuryou zousan mondai ni tsuite

Beihai no riyou ni tsuite kondate ni tsuite

Senji sekiyu zousan ni kansuru kenpakusho

Sangyou no gourika ni tsuite

Sangyuugyou no hatten ni tsuite

Minshi zoushoku ni tsuite

Houmen jigyou ni tsuite

Setsugai taisaku ni tsuite

Ramī no zoushoku shourei ni tsuite

Kokusan shourei ni tsuite

Hasanhoujou no hininken ni tsuite

Arakawaishi Arakawaite ni tsuite

Sekimon shingaku ni tsuite