APA
Heyzer N., . (1987). Health. Asian and pacific development centre, Kuala Lumpur: .
Chicago
Heyzer Neeleen, . 1987. Health. Asian and pacific development centre, Kuala Lumpur: .
Harvard
Heyzer N., . (1987). Health. Asian and pacific development centre, Kuala Lumpur: .
MLA
Heyzer Neeleen, . Health. Asian and pacific development centre, Kuala Lumpur: . 1987.