210 хичээлийн сонсох дасгалыг татаж авах линк

http://share.hiub.mn/download.htm?id=3kgb2j14kold4kv9pmg6jj699s

Engineering

Engineers: 
https://www.youtube.com/watch?v=BjKmWk3oE4E
https://www.youtube.com/watch?v=phcSyfInxoQ

https://www.youtube.com/watch?v=vt79JcPfZQA
https://www.youtube.com/watch?v=_9ZS6q4996g