/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: ryosimanjuntak1 https://cdn.slidesharecdn.com/profile-photo-ryosimanjuntak1-48x48.jpg?cb=1523373737 ORAET LABORA....... BERPACARAN SAMBIL BELAJAR...... ska bca bku, biar jd DR,Drs,Ir,Prof. mdh2an jd dIantra tu.......