TY  - BOOK
AU  - Billings,Evelyn L.
TI  - Mengenal metode ovulasi Billings
SN  - 9789792113846
PY  - 2007///
CY  - Indonesia
PB  - Penerbit Kanisius
KW  - Ovulation
KW  - Family planning
KW  - Menstrual cycle
KW  - Human reproduction
KW  - Endocrine aspects
N1  - Judul asal; Teaching The Billings Ovulation Method
ER  -