From a study of the box put the lid PMA 48 can gather information from a questionnaire given to the employees who work in the restaurant 7 eleven Ratchada 2 points 13 code 6620 BN sector, Branch Code 6685 รัชดาซิตี้ BS sector,Branch Code, Ramindra 23 9501 BE sector number of 30 people, and then analyzed by proving information to find information and calculate average value per statistical summary of the results, is as follows:
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