Gaya APA
Trenggono, Heppy. (2012).
9 Pertanyaaan Fundamental .
Jakarta:
Progressio Publishing.
Gaya Chicago
Trenggono, Heppy.
9 Pertanyaaan Fundamental.
Jakarta:
Progressio Publishing,
2012.
Non-fiction.
Gaya MLA
Trenggono, Heppy.
9 Pertanyaaan Fundamental.
Jakarta:
Progressio Publishing,
2012.
Non-fiction.
Gaya Turabian
Trenggono, Heppy.
9 Pertanyaaan Fundamental.
Jakarta:
Progressio Publishing,
2012.
Non-fiction.