Syafieh, Syafieh, Saifuddin Saifuddin, and Mawardi Siregar. 2021. “Sufism and Its Artistic Creativity: The Role of the Sammāniyya Sufi Order in the Da‘wah Activity in Sumatera”. Teosofi: Jurnal Tasawuf Dan Pemikiran Islam 11 (1):142-67. https://doi.org/10.15642/teosofi.2021.11.1.142-167.