Gaya APA
Heardman, H.
(1996).
Senam Hamil ( Relazation and Exercise for Childbirth )
.
Jakarta:
Arcan.
Gaya MLA
Heardman, H..
"Senam Hamil ( Relazation and Exercise for Childbirth )".
Jakarta:
Arcan,
1996.
Text.