APA Style
Marpaung, P. (2015).
Setengah Isi Kosong: When Life Has Been Seen Half Full and Half Empty .
Bandung:
Penerbit Duta.
MLA Style
Marpaung, Parlindungan.
"Setengah Isi Kosong: When Life Has Been Seen Half Full and Half Empty".
Bandung:
Penerbit Duta,
2015.
Text.