�ݺ�ߣshows by User: lamsoft2

�ݺ�ߣshows by User: lamsoft2 / http://www.slideshare.net/images/logo.gif �ݺ�ߣshows by User: lamsoft2 / �ݺ�ߣShare feed for �ݺ�ߣshows by User: lamsoft2 https://cdn.slidesharecdn.com/profile-photo-lamsoft2-48x48.jpg?cb=1523174158 Sự vật không thay đổi, chính chúng ta thay đổi.