APA Format
Maria Etty. (2009).
Gema lonceng natal : Untaian kesaksian/ Maria Etty
. Jakarta :: Elex Media Komputindo,.
MLA Format
Maria Etty.
Gema lonceng natal : Untaian kesaksian/ Maria Etty
. Jakarta :: Elex Media Komputindo,, 2009
Chicago Format
Maria Etty. Gema lonceng natal : Untaian kesaksian/ Maria Etty. Jakarta :: Elex Media Komputindo,, 2009.