Wakariyasuku oboeyasui nihon chiri no kenkyuu

Wakariyasuku oboeyasui nihon bunpou no kenkyuu

Wakariyasuku oboeyasui doubutsu no kenkyuu

Wakariyasuku oboeyasui shokubutsu no kenkyuu

Wakariyasuku oboeyasui eibunpou no kenkyuu

Wakariyasuku oboeyasui heimen kika no kenkyuu

Wakariyasuku oboeyasui ippan rika no kenkyuu : shinsei junkyo

Oboeyasui nihon chiri

Oboeyasui sekai chiri

Nihon chiri kenkyuu

Miyasuku oboeyasui nihon rekishi : 3danshiki taihi

Jukensha no oboe yasuki nihon chiri

Kyoudo chiri no kenkyuu

Chiri kyouiku no kenkyuu

Chiri no kenkyuu jugyou

Rekishi chiri no kenkyuu

Wakari yasuku oboe yasui ouyou rika no kenkyuu : shinsei junkyo

Oboeyasui sanjutsu no kougi

Risou no nihon chiri : shumi to kenkyuu juken no sankou

Kyoudo chiri kenkyuu

Chiri kyouzai kenkyuu

Kokushi chiri kyouiku no kenkyuu

Nihon chiri seigi : mottomo youryou o eta kenkyuu no

Mottomo youryou o etaru gakusei nihon chiri no kenkyuu

Chiri kyoujuhou kenkyuu no shikata