Supaad M.A. <br/><br/>
Comparative study of padi yield loss due to Echinochloa crus-galli infestation and Leptocorisa oratorius attacks / 
M.A. Supaad, N.A. Puat and M. Azmi 
 - Serdang :  MARDI,  1989 
 - p. : 23