SIREGAR, D. S.; YASMIN, N. Sultan, Plantations, and Islam: Dynamics of Social-Political Life in East Sumatra (1900-1942). Yupa: Historical Studies Journal, [S. l.], v. 7, n. 2, p. 147–160, 2023. DOI: 10.30872/yupa.v7i2.2354. Disponível em: https://jurnal.fkip.unmul.ac.id/index.php/yupa/article/view/2354. Acesso em: 5 apr. 2025.