id	domain	url
ajrhss-2887	www.americanjournal.org	www.americanjournal.org
ajrhss-2887	www.americanjournal.org	www.americanjournal.org
ajrhss-2887	www.americanjournal.org	www.americanjournal.org
ajrhss-2887	www.pblworks.org	https://www.pblworks.org/blog/gold-standard-pbl-essential-projectdesignelements