Ichsan, Ilmi Zajuli, Akhmad Subkhi Ramdani, Eny Purwanitiningsih, Santhi Pertiwi, and Saat Safaat. 2026. “Student Worksheets on Environmental Education Based on Project-Based Learning for the 4r Topic in Elementary School”. JURNAL PENDIDIKAN DASAR 14 (1):43-48. https://doi.org/10.46368/jpd.v14i1.5167.