MUTTAQIN, A.; FATIRUL, A. N.; HARTONO, H. Pengembangan Modul Perubahan Lingkungan dan Daur Ulang Limbah Berbasis Discovery Learning Melalui Media Google Classroom. Jurnal Pijar Mipa, [S. l.], v. 14, n. 2, p. 60–67, 2019. DOI: 10.29303/jpm.v14i2.1292. Disponível em: https://jurnalfkip.unram.ac.id/index.php/JPM/article/view/1292. Acesso em: 27 jan. 2023.