From research by the National Statistical Office found that the Thai population for a period of 7-8 hours of work per day and increased morbidity rate.
From research by the Office for National Statistics showed that the population of Thailand is working 7-8 hours per day, and the unemployment rate increased.
From research by National Bureau of statistics showed that the Thai population have working time 7 - 8 hours a day and had a much higher unemployment rate .