Issue: Silk Festival is annually held in Khon Kaen province. Starting from 1993. 2522 (1979) until now, with the purpose to promote the profession of woven silk. Research both the public and private sectors participate in out shop display products and selling local products (silk), and other souvenirs. It attracted people. As a result, there are a number of people who visit a lot. Cause a lot of waste, and why it might be causing the germs or bacteria. As well as the burden of those collecting sweeper.
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