Britanica book of the year 2000
Chicago : encyclopaedia Britanica Inc, 2000,
Buku Referensi
The year book of pediatrics
edited by Frank A. Oski, James A. Stockman
Year Book Medical Publ. Comp., 1983
Buku Teks
Malaysia year book 1971
The Straits Times Press, 1971
Buku Teks
Stockman, Oski
Year book of Pediatrics
Mosby Year Book, 1991
Buku Teks
Mining And Energy Year Book
Buku Teks