George Allen & Unwin, London, 1917.

Tassman, I. S.,

The Eye Manifestations of Internal Disease,

C. V. Mosby Co., St. Louis, 1946.

Thorington, Luke, L. Cunningham, and J. Parascondola, “The Illuminant in the Prevention and Phototherapy of Hyperbilirubinemia,”

Illiminating Engineering,

April 1971.

Van der Veer, R. and G. Meijer,

Light and Plant Growth,

Eindhoven, The Netherlands, 1959.

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