Artha, Dewi Juni, and Widya S. “Optimism and Pessimism of Hazel Grace in John Green’s Novel The Fault in Our Stars”. KnE Social Sciences 3, no. 19 (August 1, 2019): 199–212. Accessed April 28, 2024. https://knepublishing.com/index.php/KnE-Social/article/view/4847.