Kersten, Carool. 2009. “Sultans, Shamans & Saints: Islam and Muslims in Southeast Asia by Howard Federspiel (Honolulu: University of Hawai’i Press, 2007. 297 pages.)”. American Journal of Islam and Society 26 (3). USA:141-44. https://doi.org/10.35632/ajis.v26i3.1385.