ขนาดวิดีโอ: 1280 X 720853 X 480640 X 360
แสดงแผงควบคุมโปรแกรมเล่น
เล่นอัตโนมัติ
เล่นใหม่
Very good lecture.Expecting more of this quality !
Kindly reupload with elimination of background noise. It is very difficult to hear the speaker.
Very good lecture.Expecting more of this quality !
Kindly reupload with elimination of background noise. It is very difficult to hear the speaker.