Hatam (also spelled Hattam, Atam) is a divergent language of New Guinea. Apart from Mansim (Borai), formerly listed as a dialect, it is not closely related to any other language, and though Ross (2005) tentatively assigned it to the West Papuan languages, based on similarities in pronouns, Ethnologue and Glottolog list it as a language isolate or small independent family.
^ abHammarström, Harald; Forkel, Robert; Haspelmath, Martin, eds. (2017). "Hatam". Glottolog 3.0. Jena, Germany: Max Planck Institute for the Science of Human History.
^Reesink, Ger P. (1999). A Grammar of Hatam: Bird's Head Peninsula Irian Jaya. Canberra: Research School of Pacific and Asian Studies, Australian National University.: Pacific Linguistics: Series C, 146. pp. 9–13.
Ross, Malcolm (2005). "Pronouns as a preliminary diagnostic for grouping Papuan languages". In Andrew Pawley; Robert Attenborough; Robin Hide; Jack Golson (eds.). Papuan pasts: cultural, linguistic and biological histories of Papuan-speaking peoples. Canberra: Pacific Linguistics. pp. 15–66. ISBN0858835622. OCLC67292782.
Reesink, Ger P. (1999). A grammar of Hatam : Bird's Head Peninsula, Irian Jaya. Pacific Linguistics. Series C, 146. Canberra: Research School of Pacific and Asian Studies, The Australian National University. hdl:1885/146620. ISBN978-0-85883-497-2.CS1 maint: ref=harv (link)