In the preparation of questionnaires, feedback management operations cope, from earthquakes and flooding from the dam phibat. By the calculation of the sample size of teeth.
To prepare feedback on the implementation of the management response to the earthquake and flooding from the dam disaster. The sample size was calculated by a formula of crazy.
In the preparation of the questionnaires on the operation management of earthquake disaster and dealing น้ำท่วมจาก dam. By calculating the sample size by the formula of the crazy