Sugiarto, Bambang, Dosen  universitas negeri surabaya, Indonesia

• The 1st International Conference on Science, Mathematics, Environment and Education 2017 - Other
  Development Of Science Learning Tools Based On Learning Cycle 5E Model To Improve Student Junior High Shcool Result On Classification Of Chemical Materials Azizah Jaafar1)*, Bambang Sugiarto2)*, Tjipto Prastowo3)* 1,2,3 Education Science Program, Postgra
  Abstract