The study used a questionnaire number 85 sets of customers from the sampling. using accidental sampling method ใช้แบบสอบถามจำนวน 85 ชุดกับลูกค้าที่ได้จากการสุ่มตัวอย่างแบบบังเอิญ
The study used a questionnaire number 85 sets of customers from the sampling. using accidental sampling methodNumber of queries set to 85 from sampling the mistake.
The study used a questionnaire number 85 sets of customers from the sampling. Using accidental sampling method used questionnaires to customers who have 85 sets of random chance.
The study used a questionnaire number 85 sets of customers from the sampling. Using accidental sampling method using questionnaire 85 series with customers from random samples by chance.