Waffak, Muhammad Nasihul, and Taryatman. 2024. “Review of the Development of the Concept of Ericson’s Personality Psychology Theory in Physical Education Learning for Elementary School Children”. NUSANTARA SPORTA: Jurnal Pendidikan Dan Ilmu Keolahragaan 2 (02):115-26. https://doi.org/10.2024/ns.v2i02.2024_P115-126.