Jinteki shigen ron

Jinteki shigen ron

Jinteki shigen ron

Nihon no jinteki shigen

Amerika jinteki shigen no genkai

Amerika jinteki shigen no genkai

Nougyou kikou to jinteki shigen ni kansuru chousa

Shigen kakutoku to shokuminchi saibunkatsu ron

Jinteki jigyou taikei

Zarigani no shigen seibutsugakuteki kenkyuu

Shigen shiryou youroku

Shigen shiryou youroku

Chouki kensetsu to shounen hogo : fu shounen hogo soudansho no ninmu to jigyou jinteki shigen o zoukyouseyo

Biruma kousan shigen

Nanpou no shigen

Shiberia shigen kenkyuu

Rekkoku shigen satsuyou

Teikoku shigen souran

Manmou shigen youran

Gunju shigen dokuhon

Tatakau shigen dokuhon

Higashiindo no shigen

Rekkoku shigen satsuyou

Teikoku shigen souran

Manmou shigen youran