Rochim, R.A. et al. 2021. Analisis Kebutuhan Perangkat Pembelajaran Model PjBL Terintegrasi STEM Berbasis E-Learning di Masa Pandemi Covid-19. Jurnal Basicedu. 5, 6 (Oct. 2021), 5370–5378. DOI:https://doi.org/10.31004/basicedu.v5i6.1655.