Studies on distributed questionnaires to collect data from a sample of the yawachao Thai tourists and foreigners, various attractions, tam national tourists, mostly with limited time may result in incomplete data or to tolerance, so it's a good idea to collect information by means of coordination, to seek help from a tour guide or tour officials according to the accommodation, such as hotels, guest houses, etc.3. some national watang Sha travelers read English, so it's a good idea to collect information by asking for help from the tour guide, which helps you get better facilities in chemical kansue.
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