Tenriuji, Andi, Sudirman Maca, and Andi Tenri Abeng. 2021. “The Element of Politeness in Novel The Perks of Being a Wallflower”. Humaniora: Journal of Linguistics, Literature, and Education 1 (1):43-51. https://journal.unibos.ac.id/jlle/article/view/1137.