際際滷shows by User: mariamsabry / http://www.slideshare.net/images/logo.gif 際際滷shows by User: mariamsabry / 際際滷Share feed for 際際滷shows by User: mariamsabry https://cdn.slidesharecdn.com/profile-photo-mariamsabry-48x48.jpg?cb=1523244405 If A is success in life, then A equals x plus y plus z. Work is x; y is play; and z is keeping your mouth shut. Bsc science alexandria university chem.& microbiology