Ashari, Mutmainah, Rosmiati Rosmiati, and Ulum Janah. “Revealing the Social Values through Signs in the Novel Paper Towns by John Green”. Prologue: Journal on Language and Literature 5, no. 2 (August 16, 2020): 108–114. Accessed May 3, 2024. http://prologue.sastra.uniba-bpn.ac.id/index.php/jurnal_prologue/article/view/39.