Ridwan, M. ., H. . Toisuta, S. . Sulaeman, and N. . Salam. “The Abda’u Ritual: Ethnographic Communication Study of Tulehu Society in the Moluccas, Indonesia”. International Journal of Criminology and Sociology, vol. 9, Apr. 2022, pp. 709-22, doi:10.6000/1929-4409.2020.09.67.