Wahyuni, S. et al. 2021. Development of Student Worksheets Based on Investigative Science Learning Environment (ISLE) Approach to Improve Students’ Creative Thinking Skills. Jurnal Penelitian Pendidikan IPA. 7, SpecialIssue (Nov. 2021), 39–45. DOI:https://doi.org/10.29303/jppipa.v7iSpecialIssue.903.