3 ms·
Somebody even did a hilarious study about it: http://journal.sjdm.org/15/15923a/jdm15923a.pdf http://journal.sjdm.org/15/15923a/jdm15923a.pdf
by vertexFarm 8y ago
Somebody even did a hilarious study about it: http://journal.sjdm.org/15/15923a/jdm15923a.pdf http://journal.sjdm.org/15/15923a/jdm15923a.pdf