E.K.M. Masinambow: Halmahera. W: Frank M. LeBar (red.): Ethnic Groups of Insular Southeast Asia. T. 1: Indonesia, Andaman Islands, and Madagascar. New Haven: Human Relations Area Files Press, 1972, s. 119. ISBN 978-0-87536-403-2. OCLC650009. (ang.).
Arthur LyonA.L.DahlArthur LyonA.L., Island Directory, Nairobi: Oceans and Coastal Areas Programme Activity Centre, United Nations Environment Programme (UNEP), 1991 (UNEP Regional Seas Directories and Bibliographies 35), s. 480, OCLC758719308(ang.).