Anthony Firdaus, Yula Miranda and Soaloon M Sinaga 2020. Implementasi Model PjBL terhadap Peningkatan Keterampilan Proses Sains dan Sikap Ilmiah Siswa Kelas VIII SMP. Journal of Environment and Management. 1, 3 (Oct. 2020), 259–266. DOI:https://doi.org/10.37304/jem.v1i3.2572.