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Based on preliminary observation, Indonesian language learning showed that the result has not been maximized because it has not concocted the social life of the learners in the learning activities. Teachers only use textbooks held Kemendikbud that is global so that less representative of the real problems for learners in Timor.  This results in passive learners in learning because there is no suitability of life of learners with the subject matter contained in the book. Thus, it is necessary to develop a supplementary book  negotiation text containing local wisdom of Timor using Content Language Integrative Learning (CLIL) Approachapproach to close the gap between what is happening and what is expected in Indonesian language learning in Timor. The purpose of this study aims to describe 1) the development process of supplementary book  negotiation text containing local wisdom of Timor using Content Language Integrative Learning Approach and 2) the quality of the supplementary book negotiation text containing local wisdom using Content Language Integrative Learning Approach. The development process using Four-D model adapted as needed to define, design, and development. The results of this research and development show the quality of supplement book on the validity aspects categorize very feasible, practical aspects of book supplement categorized very practical, and the effectiveness aspects of book supplement categorized very effective.

negotiation text supplement book development, local wisdom of Timor, CLIL