W. Rahmayanti, F. Gunawan, K. Karim, S. Fauziah, and R. Raehang, “Moral Values in Indonesian Textbooks for First Grade: A Multimodality Discourse Analysis”, Multidiscip. J. Soc. Sci. Humanit., vol. 1, no. 3, pp. 165–178, Mar. 2026.