/ http://www.slideshare.net/images/logo.gif / 際際滷Share feed for 際際滷shows by User: JeffryJuadiong https://cdn.slidesharecdn.com/profile-photo-JeffryJuadiong-48x48.jpg?cb=1523079955 Skype: professor.jeffry YM: jeff_um@rocketmail.com