Gaya APA
Kusumaratna, R, K. (2008).
Impact of Physical Activity on quality of Life in the Elderly .
Jakarta:
Trisakti Universiti Press.
Gaya MLA
Kusumaratna, Rina, K..
"Impact of Physical Activity on quality of Life in the Elderly".
Jakarta:
Trisakti Universiti Press,
2008.
Text.