Acknowledgements This report, completed by a good thank you Teachers, modest spirit tree yellow Teachers work, knowledge and advice The various Thank you very much! Teachers, modest spirit tree yellow Teachers who order the project have reviewed and fixed a bug with the personal attention every step in order to provide the most complete this report. Thank you friends and dislikes anyone who helped in the research report, this time smoothly until this project is completed, and the image is good. Thank you, grace family, father, mother, please provide financial support to this project and the study of who is behind the success engaging all people. Where has provided assistance and encouragement throughout the project, this piece can be made successfully, the result? In all respects. La thinphat weapons September 9, 2559
การแปล กรุณารอสักครู่..