Wati, Dwi Suseno, Sardianto Markos Siahaan, and Ketang Wiyono. 2021. “ EFEKTIVITAS LEARNING MANAGEMENT SYSTEM CHAMILO MATERI GERAK HARMONIK SEDERHANA TERHADAP HASIL BELAJAR PESERTA DIDIK”. LENSA (Lentera Sains): Jurnal Pendidikan IPA 11 (2), 100-109. https://doi.org/10.24929/lensa.v11i2.166.