REFERENCES
- Katz J (2002) Handbook of Clinical Audiology (5th edn). Baltimore, MD: Lippincott Williams & Wilkins.
- Koningsmark BW, Gorin RJ (1976) Genetic and Metabolic Deafness. Philadelphia, PA: WB Saunders.
- Martin FN, Clark GC (1996) Hearing Care for Children. Needham Heights, MA: Allyn & Bacon.
- Mueller MB (2002) Comprehension and Speech Achievements of Filipino Children with Cochlear Implants. University of the Philippines, Diliman: Division of Curriculum and Instruction.
- Northern JL, Downs MP (1984) Hearing in Children (3rd edn). Baltimore, MD: Williams & Wilkins.