/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: rachmatawibowo https://cdn.slidesharecdn.com/profile-photo-rachmatawibowo-48x48.jpg?cb=1523585225 http://www.energisurya.wordpress.com Please visit my Solar Cell Blog at http://energisurya.wordpress.com