APA Style
Okawa, Ryuho. (2009).
The Science Of Happiness .
United States of America:
Destiny Books.
Chicago Style
Okawa, Ryuho.
The Science Of Happiness.
United States of America:
Destiny Books,
2009.
Perpustakaan KALBIS.
IEEE Style
*IEEE style untuk Skripsi
Okawa, Ryuho.
(2009).
The Science Of Happiness.
.
United States of America:
Destiny Books.
*IEEE style untuk Buku/Jurnal
Okawa, Ryuho.
The Science Of Happiness.
.
United States of America:
Destiny Books,
2009.
MLA Style
Okawa, Ryuho.
The Science Of Happiness.
United States of America:
Destiny Books,
2009.
Perpustakaan KALBIS.
Turabian Style
Okawa, Ryuho.
The Science Of Happiness.
United States of America:
Destiny Books,
2009.
Perpustakaan KALBIS.