Salamah, Alfi, et al. “The Development Research: Assessment Instruments of Science Literacy Based on Minimum Competency Assessment (AKM) Level 4th for Solar System Concepts”. Jurnal Penelitian & Pengembangan Pendidikan Fisika, vol. 8, no. 1, June 2022, pp. 115-24, doi:10.21009/1.08111.