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Referrence

1. Trendy Business Studies Form one by Moran pg 12-13.

2. http://www.economicsdiscussion.net/articles/human-wants-characteristics-importance-and-classification-of-wants/1451

3. https://youtu.be/9viPUdJdwaQ

4. https://youtu.be/h1z4-YiZopY

5. https://youtu.be/c49QKrNJpT8

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