"The Ramu languages are a family of some thirty languages of northern Papua New Guinea. They were identified as a family by John Z'graggen in 1971, and linked with the Sepik languages by Donald Laycock two years later. Malcolm Ross (2005) classifies them as one branch of a Ramu \u2013 Lower Sepik language family. Z'graggen had included the Yuat languages, but that now seems doubtful."@en .