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2. Allrecipes. Allrecipes | Food, Friends, And Recipe Inspiration (2020). https://www.allrecipes.com/, Accessed 30 May 2020
3. Cookpad. http://cookpad.com/, Accessed 30 May 2020
4. Yahoo! Recipe. http://recipe.gourmet.yahoo.co.jp/, Accessed 30 May 2020
5. Choose dishes using websites of cooking (in Japanese). https://japanese-cuisine.com/, Accessed 30 May 2020