Wulandari, A., Azizah Hanoum Siregar, and Santiah. “Pemenuhan Kebutuhan Tokoh Hertzko Haft Dalam Novel Grafis Der Boxer Karya Reinhard Kleist: Kajian Psikologi Sastra”. Brila: Journal of Foreign Language Education, Vol. 2, no. 1, May 2022, pp. 50-68, http://103.8.12.212:33180/unj/index.php/brila/article/view/26182.