Lehrbuch; Arbeitsbuch; Course book; Textbook; Workbook; Übungsbuch; Introductions (to linguistics) ; Kindersprache (pathol.) ; Child language (pathol.) ; Specific language impairment; SLI; Dysgrammatismus (Kindersprache) ; Dysgrammatism (child language) ; Handicapped language acquisition ; Case study (pathol.) ; Communicative competence (language therapy) ; Language intervention; Children (speech therapy with) ; Speech therapy for children ; Kommunikationshilfen; Augmentative and alternative communication; AAC; Communication augmentation
