Khusna, Siti Janatul, and Rahmawati Mulyaningtyas. (2023) 2023. “Pengembangan Bahan Ajar Menulis Teks Laporan Hasil Observasi Berbasis Model Project Based Learning: Development of Teaching Materials Writing Text Observation Reports Based on Project Based Learning Models”. KOLASE 1 (2):1-9. https://doi.org/10.35706/jk.v1i2.8794.