Human against disease.
Ranawaka, Gaya ;
Human against disease. - Nawala : Open University of Sri Lanka, 1999. - iv, 115 p. : illustrations ;
Human Biology.
Human.
Disease.
616.079 / RAN
Human against disease. - Nawala : Open University of Sri Lanka, 1999. - iv, 115 p. : illustrations ;
Human Biology.
Human.
Disease.
616.079 / RAN