Siagian, Delima Tuesday, Nining Maida, Dede Margo Irianto, and Rendi Restiana Sukardi. 2023. “The Effectiveness of Mnemonic Device Techniques in Improving Long-Term Memory in Learning in Elementary Schools: A Literature Review”. Equator Science Journal 1 (1):24-30. https://doi.org/10.61142/esj.v1i1.4.