The most promising external links are with the Sepik and Torricelli languages. The pronoun for "I" is reconstructed as *wan for both proto-Senagi and proto-Sepik, while the Angor masculine dual and plural pronominal suffixes -fa- and -mu- appear to reflect the proto-Sepik and proto-Torricelli dual and plural pronominal suffixes *-p and *-m.
^Foley, William A. (2018). "The Languages of the Sepik-Ramu Basin and Environs". In Palmer, Bill (ed.). The Languages and Linguistics of the New Guinea Area: A Comprehensive Guide. The World of Linguistics. 4. Berlin: De Gruyter Mouton. pp. 197–432. ISBN978-3-11-028642-7.
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.