Gaya APA
Biliings, Evelyn, Westmore, Ann. (2008).
Metode Ovulasi Billings .
Jakarta:
Gramedia.
Gaya Chicago
Biliings, Evelyn, Westmore, Ann.
Metode Ovulasi Billings.
Jakarta:
Gramedia,
2008.
Buku Teks.
Gaya MLA
Biliings, Evelyn, Westmore, Ann.
Metode Ovulasi Billings.
Jakarta:
Gramedia,
2008.
Buku Teks.
Gaya Turabian
Biliings, Evelyn, Westmore, Ann.
Metode Ovulasi Billings.
Jakarta:
Gramedia,
2008.
Buku Teks.