thiagarajan 4d model
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Original Price:$999.00
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The 4D model is the research and development methods are used to develop learning tools. The 4D model was developed by S. Thiagarajan, Semmel, and Semmel in 1974[1]. As the name implies, the 4D model consists of. 4 main stages, namely Define, Design, Develop, and Disseminate. model rambut shaggy
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