Pikoli , S.W. et al. 2025. Validitas E-LKPD Berbasis Pendekatan Socio-Scientific Issues Pada Materi Perubahan Lingkungan di Kelas X SMA Negeri 4 Gorontalo: (Validity of E-LKPD Based on Socio-Scientific Issues Approach on Environmental Change Material in Class X of SMA Negeri 4 Gorontalo). BIODIK. 11, 02 (Jun. 2025), 444–454. DOI:https://doi.org/10.22437/biodik.v11i02.44629.