APA Format
Pertiwi Ambarningrum;
. (2009). Basic grammar for beginners
/
. Jakarta : Cladina Media
MLA Format
Pertiwi Ambarningrum;
. Basic grammar for beginners
/
. Jakarta : Cladina Media, 2009
Chicago Format
Pertiwi Ambarningrum;
. Basic grammar for beginners
/
. Jakarta : Cladina Media, 2009
Australian/Harvard Format
Pertiwi Ambarningrum;
. 2009. Basic grammar for beginners
/
. Cladina Media Jakarta