Suryani, Y. 2026. Need Analysis for the Development of the SI-ECOFIS E-Worksheet Integrating Ecotheology and Education for Sustainable Development in Environmental Physics Courses. BIOCHEPHY: Journal of Science Education. 6, 1 (Jun. 2026), 240–251. DOI:https://doi.org/10.52562/biochephy.v6i1.1997.