Development of Electronic Portfolio Assessment Instruments to Improve Students’ Creative Thinking Skills in Chemical Reaction Equations MaterialsTriannisa Rahmawati, Dinda Kamila Dzulhizati, Nahadi, Wiwi Siswaningsih, Hokcu Suhanda, Sjaeful Anwar and Alfina Dzabillah ZahiraE3S Web of Conf., 482 (2024) 04028DOI: https://doi.org/10.1051/e3sconf/202448204028