Lubis, A. et al. 2026. Enhancing Teachers’ Pedagogical Quality through STEAM–Heritage Learning: The Dalium Project-Based Learning Syntax for Portfolio-Based Assessment of Science Collaboration, Civic Engagement, and Public Communication. Jurnal Pendidikan IPA Indonesia. 15, 2 (Jun. 2026). DOI:https://doi.org/10.15294/jpii.v15i2.42975.