Gaya APA
Primary health care. (1978).
Geneva:
World Health Organization.
Gaya Chicago
Primary health care.
.
Geneva:
World Health Organization,
1978.
Buku.
Gaya MLA
Primary health care.
.
Geneva:
World Health Organization,
1978.
Buku.
Gaya Turabian
Primary health care.
Geneva:
World Health Organization,
1978.
Buku.