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Sukotjo, Maranantia and Alben Ambarita, Alben and Suntoro, Irawan and Caswita, Caswita (2020) The Development of Mathematical Teaching Books- Based Realistic Approach to Increase Creative Thinking Ability in 5th Grade Elementary School. Advances in Social Science, Education and Humanities Research (ASSEHR), 422. pp. 252-257. ISSN 2352-5398