Okawa, R. (2015). The Laws of Wisdom. Jaisco Books.
Chicago-čujuhus (17. p.)Okawa, Ryuha. The Laws of Wisdom. Mumbai: Jaisco Books, 2015.
MLA-čujuhus (9. p.)Okawa, Ryuha. The Laws of Wisdom. Jaisco Books, 2015.
Muitte dárkkistit čujuhemiid riektatvuođa, ovdal go geavahat daid iežat deavsttas.