All the Differences Between Kit Kats in the US and Japan

The label applied to this Kit Kat not authorized to be sold in the US. : r/mildlyinteresting

We Tried Every American vs. Japanese Kit Kat Flavor

Kosher-certified, assorted snack-size wafer candy bars individually wrapped for lasting freshness and holiday festivity Unwrap fun KIT KAT candies

Hershey's KitKat 6 Bars Variety Assortment Mix Bundle Pack Chocolate Candy Singles - Milk - Dark- Mint - Mocha - Strawberry - Blueberry Muffin, 1.5

We Tried Every American vs. Japanese Kit Kat Flavor

The 10 Best Japanese Kit Kat Flavors

In Japan, the Kit Kat Isn't Just a Chocolate. It's an Obsession. - The New York Times

Food Wars - Business Insider

A Guide to Japanese Kit Kat Flavors - From Regional Collections to Limited Editions

Popular flavours of KitKats in Japan and where to find them

We Tasted And Ranked 10 Kit Kat Flavors