Anthony Firdaus, Yula Miranda, and Soaloon M Sinaga. “Implementasi Model PjBL Terhadap Peningkatan Keterampilan Proses Sains Dan Sikap Ilmiah Siswa Kelas VIII SMP”. Journal of Environment and Management, vol. 1, no. 3, Oct. 2020, pp. 259-66, doi:10.37304/jem.v1i3.2572.