@techreport{weko_74094_1,
   author	 = "AsankaDDharmawansa and Ryosuke,Taguchi and KatsukoT.Nakahira and Hideyuki,Kanematsu and Yoshimi,Fukumura",
   title	 = "Analyze the Student Behavior in Virtual Classroom with Problem Based Learning Environment",
   year 	 = "2011",
   institution	 = "Nagaoka University of Technology Niigata, Japan, Nagaoka University of Technology Niigata, Japan, Nagaoka University of Technology Niigata, Japan, Suzuka National College of Technology, Suzuka, Mie, Japan, Nagaoka University of Technology Niigata, Japan",
   number	 = "5",
   month	 = "may"
}