Gaya APA
Heardman, . (1996).
Senam hamil =relaxation and exercise for childbirth (Seri Kesehatan Wanita) .
Jakartaa:
Arcan.
Gaya MLA
Heardman, .
"Senam hamil =relaxation and exercise for childbirth (Seri Kesehatan Wanita)".
Jakartaa:
Arcan,
1996.
Text.