Human Rights Watch said members of the Afghan parliament regularly criticized each other, but no one else had been suspended.
It said the Afghan parliament should revise rules restricting freedom of speech.
The rights group describes Joya as a "staunch defender of human rights and a powerful voice for Afghan women."
Copyright (c) 2007. RFE/RL, Inc. Reprinted with the permission of Radio Free Europe/Radio Liberty, 1201 Connecticut Ave., N.W. Washington DC 20036. www.rferl.org and http://dndtalk.com/Joomla,dndtalk.ca