Nadila, Mutiara, and Elvy Rahmi Mawarnis. “Decoding The Obstacles of 10th Grade Student Learning in Atomic Structure at SMAN 1 Sungai Tarab”. Hydrogen: Jurnal Kependidikan Kimia, vol. 11, no. 6, Dec. 2023, pp. 1017-30, doi:10.33394/hjkk.v11i6.10154.