Morabia, Alfredo . (). The development of... : Epidemiological methods and concepts in the nineteenth century and their influences on the twentieth century, ( Ket. lihat Bab. 3 ) ( halaman 17-29 ). : Oxford ; New York: Oxford University Press, 2007

Morabia, Alfredo . The development of... : Epidemiological methods and concepts in the nineteenth century and their influences on the twentieth century, ( Ket. lihat Bab. 3 ) ( halaman 17-29 ). : Oxford ; New York: Oxford University Press, 2007,

Morabia, Alfredo . . The development of... : Epidemiological methods and concepts in the nineteenth century and their influences on the twentieth century, ( Ket. lihat Bab. 3 ) ( halaman 17-29 ). Oxford ; New York: Oxford University Press, 2007,