BrickLink - Part 21302stk01a : LEGO Sticker Sheet for Set 21302 - International Version - (23931/6126970) [Sticker Sheet] - BrickLink Reference Catalog
Review: 21302 The Big Bang Theory | Brickset: LEGO set guide and database
BrickLink - Set 21302-1 : LEGO The Big Bang Theory [LEGO Ideas (CUUSOO)] - BrickLink Reference Catalog