SRIWAHYUNI, Elsa. Penggunaan Flashcard Sistem Periodik Unsur Terhadap Keterampilan Proses Sains Dasar Peserta Didik Kelas X SMA. Orbital: Jurnal Pendidikan Kimia, [S. l.], v. 6, n. 2, p. 136–146, 2022. DOI: 10.19109/ojpk.v6i2.14045. Disponível em: https://jurnal.radenfatah.ac.id/index.php/orbital/article/view/14045.. Acesso em: 4 apr. 2025.