As well as being used to observe, participate and observe non-participation. After that, researchers collected questionnaires to monitor and analyze data. Research on satisfaction to improve tank decreases smoke
Including the use of participatory observation. And observation without participation. After collecting the data, the researcher examined and analyzed the data. The results showed that the The satisfaction of improving the tank to reduce smoke and odor.
As well as using participant observation And non-participant observation After that, the researcher collected data were tested and analyzed. The results showed that the data research and satisfaction to improve tank reduce the smoke