Priyana Joko, Riandi, Mumpuni Anita Prasetyo. Interlanguage: English for Senior High School Students XI - Science and Social Study Programme

Pusat Perbukuan, 2008. — 236 p.These materials are intended to provide learning materials for English language learners in accordance with the Content Standards Class XI in Indonesia. Materials and learning tasks have been developed with the principles of Communicative Approach to Integrated learners. In addition to learning the content and work in an integrated manner to develop life skills in a broad sense and insight diversity, it also helps students to develop competence in all four language skills, namely listening, speaking, reading, and writing.