Purnomo, Aris Rudi, Program Studi Pendidikan Sains, FMIPA, Universitas Negeri Surabaya, 60231, Indonesia, Indonesia

• Vol 6, No 1 (2019): Jurnal Pena Sains - Artikel
  TEACHER SKILLS IN DEVELOPING INSTRUMENTS OF TEST ESSAY IN SCIENCE LESSONS IN JUNIOR HIGH SCHOOL: Case Study In Kediri, East Java-Indonesia
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