No mobile, no life: Self-perception and text-message dependency among Japanese high school students. - Tasuku Igarashi; Tadahiro Motoyoshi; Jiro Takai; Toshikazu Yoshida (Comput. Hum. Behav., 2008)

A Framework to Identify Relationships among Students in School Bullying Using Digital Communication Media. - Masaru Honjo; Toru Hasegawa; Teruyuki Hasegawa; Koji Mishima; Tatsuya Suda; Toshikazu Yoshida (SocialCom/PASSAT, 2011)