Ex.2

 Ex.2 หาคู่มือ Arena

link 1 : https://studerende.au.dk/fileadmin/www.medarbejdere.au.dk/it/BSS_Analysevaerktoejer/Arena/Arena_User_s_Guide_EN.pdf

link 2 : https://drive.google.com/file/d/1YKXz0tXVq5wK-MVs-wFnGg2NxAe5TJwu/view?usp=sharing