Gaya APA
Public Health Skill. (2008).
USA:
Blackwell Publishing.
Gaya Chicago
Public Health Skill.
.
USA:
Blackwell Publishing,
2008.
Buku.
Gaya MLA
Public Health Skill.
.
USA:
Blackwell Publishing,
2008.
Buku.
Gaya Turabian
Public Health Skill.
USA:
Blackwell Publishing,
2008.
Buku.