ASTUTI, Y. IMPROVING GRADE 9 SCIENCE PROCESS SKILLS OF SMPN 5 PROBOLINGGO USING DISCOVERY LEARNING MODEL. Jurnal Penelitian Pendidikan IPA, [S. l.], v. 4, n. 1, p. 38–45, 2019. DOI: 10.26740/jppipa.v4n1.p38-45. Disponível em: https://journal.unesa.ac.id/index.php/jppipa/article/view/5547. Acesso em: 1 dec. 2022.