Changes in Vocabulary Size of Pupils at a School for the Deaf: As Measured by the Picture Vocabulary Test 論文 Yukio Isaka ·2011-01-01 ·『The Japanese Journal of Special Education』 49(1) pp. 11-19 doi:10.6033/tokkyou.49.11
Development of literacy skills for Japanese deaf and hard-of-hearing children 論文 Noboru Takahashi・Yukio Isaka・Tomoyasu Nakamura ·2023-04-20 ·『Child Development』 94(3) pp. e128-e142 doi:10.1111/cdev.13900