Astiantih, Susi. “Comparative Study Between Northup’s Narrative Slave ‘Twelve Years a Slave’ and Its Adapted Movie”. ELS Journal on Interdisciplinary Studies in Humanities 1, no. 2 (June 26, 2018): 170-175. Accessed May 4, 2024. http://journal.unhas.ac.id/index.php/jish/article/view/4388.