^Hammarström, Harald; Forkel, Robert; Haspelmath, Martin, eds. (2017). "North Muyu". Glottolog 3.0. Jena, Germany: Max Planck Institute for the Science of Human History.
^Hammarström, Harald; Forkel, Robert; Haspelmath, Martin, eds. (2017). "South Muyu". Glottolog 3.0. Jena, Germany: Max Planck Institute for the Science of Human History.