Gaya APA
headman, .
(1996).
senam hamil (relaxation and exercise for chilbirth)
(
Cetakan Ketiga)
.
Jakarta:
Penerbit Arcan.
Gaya MLA
headman, .
"senam hamil (relaxation and exercise for chilbirth)".
Cetakan Ketiga
Jakarta:
Penerbit Arcan,
1996.
Text.