Dixon (2002) considers all but Guwar to be different dialects of the Yagara language.[2]
Tony Jefferies (2011) links Gowar to the Bandjalangic languages rather than to Durubalic.
Pimpama seems to be related to Gowar, whether they are in turn related Durubalic or to the Bandjalangic languages.
Footnotes
^Minjerribah Moorgumpin Elder-in Council Jandai Language Dictionary. Dunwich, Queensland, Australia.: Minjerribah Moorgumpin Elder-in Council Aboriginal Corporation. 2011. ISBN9780987096609.
^Dixon, Robert M. W. (2002). Australian Languages: Their Nature and Development. New York: Cambridge University Press. pp. xxxiv. ISBN0521473780.
References
Dixon, R.M.W. 2002. Australian Languages: Their Nature and Development. Cambridge University Press.