Population and sample 1, the population used in this research include ฐว mechanical Department students 2. The number 43 and two samples used in this research include ฐว mechanical Department students 2. The 10 people.
And one population sample population used in this research were students of the vocational department m 2 of 43 second samples. Used in this research include the student's vocational department m 2 to 10 people.
Population and sample 1 instrument used in this research were ฐว vocational department of 43 2 people 2 samples used in this research. Were ฐว vocational department of 10 2.