"Yes, You Could Totally Meet Grumpy Cat at SXSW: And here's an interview with the people behind the varmint".
Truy cập ngày 14 tháng 3 năm 2013.  ^ “Yes, You Could Totally Meet Grumpy Cat at SXSW: And here's an interview with the people behind the varmint - SXSW Blog”.