Setiawan, D., E. W. Nurani, and A. Hidayat. “Implementation of Student Worksheets With Android-Based on Natural Science Subject”. Jurnal Iqra’ : Kajian Ilmu Pendidikan, vol. 7, no. 2, Oct. 2022, pp. 120-32, doi:10.25217/ji.v7i2.2257.