Please go to
http://www.salearningschool.com/multimedia_training/videos/bengali/chemical_engineering/
You can find the list of the course videos. You do not have to have youtube access
Course Videos: Introduction to Chemical Enginering (কেমিক্যাল ইঞ্জিনিয়ারিং পরিচিতি)
Permanent link to this article: http://bangla.sitestree.com/course-videos-introduction-to-chemical-enginering/
