The sample used in this study, 30 people from the population living in the village of Don Wai. And students of Don Wai The sampling method The sample with an interest in the conservation of the river. And potent enough to be able to apply the knowledge gained to distribute to family members or others. In the community know and follow. Perform data analysis by using percentage, mean, standard deviation, and the t-test to check the results before and after the learning process involved.
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