Sudigdo, A., O. Y. Pamungkas, Hastangka, S. B. Raharjo, and Suprapto. “The Spirit of Nationalism in Literature: A Case Study of Students in Yogyakarta”. Studies in Learning and Teaching, Vol. 4, no. 1, Apr. 2023, pp. 134-43, doi:10.46627/silet.v4i1.197.