Sukardi, S., & Nawawi, N. (2020). PENINGKATAN KETERAMPILAN PROSES SAINS SISWA SMA NEGERI 1 PONOROGO MATERI GENTIKA MELALUI MODEL PROJECT BASED LEARNING. JURNAL PENDIDIKAN SAINS DAN APLIKASINYA, 3(2), 73–78. https://doi.org/10.31571/jpsa.v3i2.2305