"4人でパンケーキ【′◡‵】♪". Fujita Ena Official Blog (in Japanese). Ameblo. February 24, 2014. Archived from the original on August 12, 2014. Retrieved September 5, 2020.
"アーティスト紹介". Vanz Entertainment (in Japanese). Archived from the original on April 13, 2010. Retrieved September 5, 2020.
"4人でパンケーキ【′◡‵】♪". Fujita Ena Official Blog (in Japanese). Ameblo. February 24, 2014. Archived from the original on August 12, 2014. Retrieved September 5, 2020.