Mustadi, A., Wibowo, S. E., & Sayekti, O. M. (2023). The Development of E-Modules for Language Politeness Learning in Independent Curriculum-Based Elementary School. Jurnal Kependidikan: Jurnal Hasil Penelitian Dan Kajian Kepustakaan Di Bidang Pendidikan, Pengajaran Dan Pembelajaran, 9(2), 408–420. https://doi.org/10.33394/jk.v9i2.7366