. . "Japanese language." . . "Japanese language Study and teaching." . . "Comparative linguistics." . . "Nihongo." . . "日本語." . "Grammar, Comparative and general." . . "Hikaku gengogaku." . . "比較言語学." . . . . . . . "Atarashii Nihongo kenkyū o manabu hito no tame ni" . . "Atarashii nihongo kenkyū o manabu hito no tame ni" . "新しい日本語研究を学ぶ人のために" . . . . . . . . . .