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Family membership references

• Joseph Daniel Brooks 2018
• William A. Foley 2005

Comments on family membership

Ap Ma [kbx] shows some typological similarities to the Grass and Ramu languages but there is little lexical evidence John A. Z'graggen 1969: 168-169 William A. Foley 2018 Joseph Daniel Brooks 2018: 70 . Ambakich [aew] has too little evidence to be included in the family at the present state of documentation Joseph Daniel Brooks 2018: 70 .

Comments on subclassification

William A. Foley 2005 Laycock, Donald C. 1973