Thành viên:DHN/Links

Wikipedia:Bạn có biết/2006/Tuần 32

• http://www.bbc.co.uk/vietnamese/science/story/2005/04/050406_truongthaidu.shtml
• http://www.unescap.org/esid/psis/population/journal/1998/v13n2a1.htm
• http://www.undp.org.vn/projects/vie98006/Aware%5CSexRevie.txt
• http://vnhlc.ucr.edu/pedagogy_training/JSEALT.pdf