Collecting the data. 4.1 who to ask, please contact books, research collaborations in research from the Faculty of public health, Khon Kaen University, in order to clarify the purpose and obtain permission to store information in the research. 4.2 researchers found the Manager of the establishment. Garage tap spray paint a car 4.3 sample selection criteria defined properties 4.4 brings books requested permission from the group cooperation, for example, to participate in the research. 4.5 the purpose statement of studies of education 4.6 data collection operation. 4.7 data collection queries 4.8 recording
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