Sumarni, S., & Manurung, A. S. (2023). Upaya Peningkatan Hasil Belajar Matematika Melalui Penerapan Model Project Based Learning pada Materi Bangun Ruang. Jurnal Basicedu, 7(5), 2862–2871. https://doi.org/10.31004/basicedu.v7i5.5923