Siagian, D. T., Maida, N., Irianto, D. M., & Sukardi , R. R. (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