J. Stephen Lansing, Murray P. Cox, Sean S. Downey, Brandon M. Gabler, Brian Hallmark, Tatiana M. Karafet, Peter Norquest, John W. Schoenfelder, Herawati Sudoyo, Joseph C. Watkins & Michael F. Hammer. "Coevolution of languages and genes on the island of Sumba, eastern Indonesia"(PDF). Princeton University. 23 August 2007. İstifadə tarixi: 2017-05-11.[ölü keçid]
J. Stephen Lansing, Murray P. Cox, Sean S. Downey, Brandon M. Gabler, Brian Hallmark, Tatiana M. Karafet, Peter Norquest, John W. Schoenfelder, Herawati Sudoyo, Joseph C. Watkins & Michael F. Hammer. "Coevolution of languages and genes on the island of Sumba, eastern Indonesia"(PDF). Princeton University. 23 August 2007. İstifadə tarixi: 2017-05-11.[ölü keçid]