Iseu Laelasari, and A. Rahmawati. “Analisis Penerapan Model Problem Based Learning Dalam Mengembangkan Sikap Peduli Lingkungan Siswa Pada Materi Pencemaran Lingkungan”. Symbiotic: Journal of Biological Education and Science, Vol. 1, no. 2, Oct. 2020, pp. 76-81, doi:10.32939/symbiotic.v1i2.9.