ex9

https://software.thaiware.com/3466-%E0%B9%82%E0%B8%9B%E0%B8%A3%E0%B9%81%E0%B8%81%E0%B8%A3%E0%B8%A1_%E0%B8%AB%E0%B8%B2%E0%B8%87%E0%B8%B2%E0%B8%99%E0%B8%94%E0%B8%B4%E0%B8%99_CF.html

ex8

https://software.thaiware.com/10239-LibreOffice-Download.html

ex7

https://sourceforge.net/projects/librecad/files/

โปรเเกรมฟรีที่ใช้เเทนAutoCAD

ex6

https://drive.google.com/file/d/0B__b2-Fue_VjR0wzMFF3Zm5lOUk/view?usp=sharing

https://mars.uta.edu/mae3183/simulation/introscilab_baudin.pdf

ex5

https://doc.lagout.org/operating%20system%20/Windows/Excel/Microsoft%20Excel%202010%20Step%20by%20Step.pdf

ex4

https://drive.google.com/file/d/12d97HzW2DUE4T9DSrVnW6xumn0vRSlhB/view?usp=sharing

ex3

http://www.nascio.org/portals/0/Documents/the-arcgis-book.pdf