Siagian, Nalom, et al. “The Influence of Creativity on Welfare Through Self-Efficacy in the Lake Toba Area of Samosir District ”. Jurnal Penelitian Pendidikan IPA, vol. 10, no. SpecialIssue, Aug. 2024, pp. 10-17, doi:10.29303/jppipa.v10iSpecialIssue.7803.