The Selective Use of Language Media by Persons with Hearing Disabilities for Communicating with Different Categories of People : Gender Differences in the Usage of Oral and Manual Methods and Conversation by Writing 論文 Emiko Kamikubo・Shizuo Hiki・Yumiko Fukuda ·1997-01-01 ·『The Japanese Journal of Special Education』 35(1) pp. 1-9 doi:10.6033/tokkyou.35.1_1