Kusumawati, T. H., and H. Herwin. “DEVELOPING AND VALIDATING THE ELEMENTARY STUDENT LEARNING AGILITY SCALE (ESLAS) FOR MEASURING KEY LEARNING TRAITS IN ELEMENTARY EDUCATION”. English Review: Journal of English Education, Vol. 12, no. 3, Oct. 2024, pp. 1219-28, doi:10.25134/erjee.v12i3.9962.