Handayani, S., S. U. Mintarti, D. Rachmawati, and H. Wahyonono. “Development of STEM-Based Evaluation Tools for Economic Learning in SMA East Java in the Education Era 4.0”. KnE Social Sciences, Vol. 5, no. 8, July 2021, pp. 322–332, doi:10.18502/kss.v5i8.9384.