Gaya APA

HEARDMAN, H. et al. (1988-c.1). Senam hamil ( relaxation and exercise for childbirth ) (1). Jakarta: EGC.

Gaya MLA

HEARDMAN, H. et al.. Senam hamil ( relaxation and exercise for childbirth ). 1 Jakarta: EGC, 1988-c.1. Text.