Nimmapirat, P., P. Suttiwan, and N. Fiedler. “Intrinsic and Extrinsic Influences of Self-regulation in the Early Years of Life Publication”. Thai Interdisciplinary and Sustainability Review, vol. 11, no. 1, July 2022, pp. 38-48, https://so03.tci-thaijo.org/index.php/JIRGS/article/view/259365.