Gaya APA

Relentless : the Japanese way of marketing / Johny K. Johansson and Ikujiro Nonaka. (1994). New York, NY: Harpercollins, c.

Gaya MLA

Relentless : the Japanese way of marketing / Johny K. Johansson and Ikujiro Nonaka. . New York, NY: Harpercollins, c, 1994. Buku Wajib.