The prevalence of depression among the eldery attending Klinik Kesihatan Butterworth from 1st April to 30th September 1999 - Sherina Mohd. Sidik (Kuala Lumpur : Universiti Kebangsaan Malaysia, 2000)
Thesis (Master in Family Medicine) - Universiti Kebangsaan Malaysia, 2000.
Keywords: Depression -- ethnology; Aged -- statistics & numerical data; INDAMET