Wakari yasuku oboe yasui ouyou rika no kenkyuu : shinsei junkyo

Wakariyasuku oboeyasui ippan rika no kenkyuu : shinsei junkyo

Gakusei no ippan rika : shinsei junkyo

Chuutou suugaku no kenkyuu : shinsei junkyo

Shinsei chuutou ouyou rika

Shinsei chuutou ouyou rika

Shinsei ouyou rika kyouju shiryou

Rika kyouzai no kenkyuu

Ryokou no rika kenkyuu

Rika kyouiku no kenkyuu

Shinsei ouyou rika kyouju shiryou shuusei

Omocha no rika kenkyuu

Ki no kenkyuu : rika sekai

Rika kyouju no saikin kenkyuu

Rika kyouiku no soshikiteki kenkyuu

Nougei rika no kenkyuu

Kenkyuu houkoku : chiri rika shukou

Wakariyasuku oboeyasui nihon chiri no kenkyuu

Shinsei chuugaku rika yougi : watakushitachi no kagaku

Jidou rika jikken no kenkyuu

Jinjou shougaku rika kyouzai no kisoteki kenkyuu

Wakariyasuku oboeyasui doubutsu no kenkyuu

Wakariyasuku oboeyasui shokubutsu no kenkyuu

Wakariyasuku oboeyasui eibunpou no kenkyuu

Shizen kenkyuu shugi shougakkou rika kyouju no kakushin