際際滷shows by User: hafizhahhafizhah / http://www.slideshare.net/images/logo.gif 際際滷shows by User: hafizhahhafizhah / 際際滷Share feed for 際際滷shows by User: hafizhahhafizhah https://public.slidesharecdn.com/v2/images/profile-picture.png I am a student of Chemical Education at Faculty of Teacher Training and Education Riau University. My hobby is writing. edukasi-hafizhah.blospot.co.id