1. 1. Inuhiko Yomota; “Kawaii” Ron, Chikuma Shobo, 2006 (in Japanese).
2. 2. Michiko Ohkura, Sayaka Goto, Asami Higo and Tetsuro Aoto; Relation between Kawaii Feeling and Biological Signals, Journal of the Japan Society of Kansei Engineering, 10(2), pp.109-114, 2011.
3. 3. Japan Society of Kansei Engineering; Kawaii Kansei design award. http://kawaii-award.org/
4. 4. Miyuki Yanagi, Yousuke Yamasaki, Yoshiyuki Yamariku, Tomomi Takashina, Yoshikazu Hirayama, Ryota Horie and Michiko Ohkura; Relation between Kawaii Feeling and Heart rates in Watching Photos, 15th Japan Society of Kansei Engineering Conference and General Meeting, B12, Tokyo, 2013.
5. 5. Ryota Horie, Miyuki Yanagi, Ryo Ikeda, Yousuke Yamasaki, Yoshiyuki Yamariku, Tomomi Takashina, Yoshikazu Hirayama and Michiko Ohkura; Event-Related Potentials Caused by Kawaii Feeling in Watching Photos Selected by Heart Beat Modulation, EMBC'14 Proc., TD18.19, Chicago, 2014.