/ http://www.slideshare.net/images/logo.gif / ºÝºÝߣShare feed for ºÝºÝߣshows by User: phuphamminh39 https://cdn.slidesharecdn.com/profile-photo-phuphamminh39-48x48.jpg?cb=1542639436 Phạm Thế Duy Director of Gia Khang Company Pham Minh Phu is my son