Gaya APA
Gunawan, Ridwan. (2005).
Teka-Teki Ilmiah .
:
Studio Rito.
Gaya Chicago
Gunawan, Ridwan.
Teka-Teki Ilmiah.
:
Studio Rito,
2005.
Art Original.
Gaya MLA
Gunawan, Ridwan.
Teka-Teki Ilmiah.
:
Studio Rito,
2005.
Art Original.
Gaya Turabian
Gunawan, Ridwan.
Teka-Teki Ilmiah.
:
Studio Rito,
2005.
Art Original.