Widayat, Widi, Wiyanto Wiyanto, and Nathan Hindarto. 2017. “Pembentukan Keterampilan Berpikir Kritis Dan Karakter Peduli Lingkungan Berbantuan Scaffolding”. Journal of Innovative Science Education 6 (1), 85-95. https://doi.org/10.15294/jise.v6i1.17068.