Murtadho, M. A. A., E. Eryansyah, and S. Silvhiany. “MULTIMODAL CONTENT ANALYSIS OF 21ST CENTURY SKILLS IN AN ENGLISH TEXTBOOK”. English Review: Journal of English Education, Vol. 12, no. 1, Mar. 2024, pp. 361-72, doi:10.25134/erjee.v12i1.7805.