�ݺ�ߣshows by User: hoangtuannguyen9406

�ݺ�ߣshows by User: hoangtuannguyen9406 / http://www.slideshare.net/images/logo.gif �ݺ�ߣshows by User: hoangtuannguyen9406 / �ݺ�ߣShare feed for �ݺ�ߣshows by User: hoangtuannguyen9406 https://public.slidesharecdn.com/v2/images/profile-picture.png Nój đượx làm đx Nój 1 hk pao jờ làm 2 1 khj đã iu thj iu hết mình hk pao jờ gụx ngã trx mọj khó khăn