1. [1] H. Yoshikawa: Introduction to general design, Seimitsu Kikai, 45(8), 20-26 (1979) (in Japanese).
2. [2] H. Yoshikawa: Sentan gijutsu to ningen (Advanced technology and human), Sekai, 19-34, Iwanami Shoten (1988) (republished in Technoglobe, Kogyo Chosakai, 20-49 (1993)) (in Japanese).
3. [3] H. Yoshikawa: Tekunoroji no yukue (Course of Technology), 63-173, Iwanami Shoten (1996) (in Japanese).
4. [4] R. K. Merton: Social Theory and Social Structure, Simon and Shuster (1947) [G. Shinto trans.: Shakai riron to shakai kozo, 16-17, Misuzu Shobo (1961)(in Japanese)].
5. [5] H. Yoshikawa: Jinko bukkan (View on artifacts), Oukan, 1(2), 59-65 (2007) (in Japanese).