1. Langman's Medical Embrology,2010
2. Cleft lip and palate;Mossey;Lancet,2009
3. Asian oral-facial cleft birth prevalence;Cooper;Cleft Palate Craniofac. J.,2006
4. The universality of otitis media in 50 infants with cleft palate;Paradise;Pediatrics,1969
5. Incidence and management of middle ear effusion in cleft palate patients;Lokman;Med. J. Malays.,1992