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Suryadi, Pipit (2019) The Use of Picture Exchange Communication System (PECS) Technique to Improve Vocabulary to Autism Students At SD Inklusi Pelangi Nusa. Undergraduate thesis, Universitas Islam Riau.
Suryadi, Pipit (2019) The Use Of Picture Exchange Communication System (pecs) Technique To Improve Vocabulary To Autism Studentsat Sd Inklusi Pelangi Nusa. Other thesis, Universitas Islam Riau.