The original Japanese edition of “Homo contribuens (Koken suru Kimochi)” is cited in “Management by Contribution Power (Koken Ryoku no Keiei)” written by Toru Yamashita.

The original Japanese edition of “Homo contribuens (Koken suru Kimochi)” is cited in “Management by Contribution Power (Koken Ryoku no Keiei)” written by Toru Yamashita.
