Tanjung, Wika Akrani, Suparni, and Nur Azizah Putri Hasibuan. 2026. “Development and Preliminary Validation of a Problem-Based Learning–Oriented Science Assessment Instrument on Changes in the State of Matter for Grade 4 Students”. Passikola: Jurnal Pendidikan Dasar &Amp; Madrasah Ibtidaiyah 3 (1):60-80. https://doi.org/10.46870/passikola.v3i2.2073.