Aswani, A., A. B. Perangin-angin, and A. Aswani. “Lexical Density in Children’s Storybook”. LingPoet: Journal of Linguistics and Literary Research, vol. 4, no. 3, Sept. 2023, pp. 50-58, https://talenta.usu.ac.id/lingpoet/article/view/12287.