Chairan Zibar L.Parisu, Insih Wilujeng, Woro Sri Hastuti and Arna Juwairiyah 2026. Reconstructing the Philosophy of Science in the Project-Based Eco-Citizenship Learning Model for Elementary Education: A Systematic Literature Review. Journal of Education and Learning Sciences. 6, 1 (Jun. 2026), 343–359. DOI:https://doi.org/10.56404/jels.v6i1.318.