Pakpahan, G., Lubis, R. A., Khaliza, N., Lumbangaol, T. A., Rumahorbo, R., & Sinaga, R. (2025). Sumpah Pemuda: Tonggak Persatuan Bangsa Indonesia. Journal of History and Culture, 15(1). https://archive.p5i.org/index.php/walasuji/article/view/65