ผูศึกษาไดเก็บรวบรวมขอมูลดวยตนเอ

Younger drivers education  collection  b   wayaton jade and amun younger  วย  Fryer. The  received a description of the object in social-dash collection b  amun. Techniques and how to keep a b  amun Educate younger   Grand  can describe the questionnaire. Dai  and  how to use the  shell  ngachak Surat matua  questionnaire is younger people in Lampang.

The study has   collect information on the   with themselves and with   Beach.  that the explanation about the purpose .  to collect the information. Techniques and methods of data collection  information.  able to explain to the   respondents  and how to use   a random sample from the   the respondents are residents in the Municipality of Lampang.