Harahap, S.R.S. et al. 2022. The Representation of Multicultural Values in Pearson Big English 6 ELT Textbook: A Discourse Analysis . Jurnal Onoma: Pendidikan, Bahasa, dan Sastra. 8, 1 (May 2022), 344–352. DOI:https://doi.org/10.30605/onoma.v8i1.1731.