American Sign Language 317 Deaf 293 History 206 Study and teaching 197 Interpreters for the deaf 190 Social conditions 168 Training of 150 hơn ... Means of communication 134 Social aspects 112 Sign language 109 Economic conditions 87 Women 73 Education 71 Documentary films 69 Deaf culture 54 Video recordings for the hearing impaired 48 Psychological aspects 47 Economic aspects 43 Deaf, Theater for the 38 Services for 37 Moral and ethical aspects 36 Terrorism 36 Translating 35 Environmental aspects 34 Government policy 33 Prevention 33 videocassettes 33 Advertising 31 Management 31 Self-instruction 31 ít hơn ...