Gaya APA
Heardman, H.
(1996).
Senam hamil : Relaxation and Esercise For Childbirth
.
Jakarta:
Arcan.
Gaya MLA
Heardman, H..
"Senam hamil : Relaxation and Esercise For Childbirth".
Jakarta:
Arcan,
1996.
Text.