A.  Buczek, Markowska-Gosik, D., Widomska, D., and Kawa, I. M., ?Pediculosis capitis among schoolchildren in urban and rural areas of eastern Poland?, European journal of epidemiology, vol. 19, no. 5, pp. 491 - 495, 2004.

Z. M.  El-Basheir and Fouad, M. A., ?A preliminary pilot survey on head lice, pediculosis in Sharkia Governorate and treatment of lice with natural plant extracts?, Journal of the Egyptian Society of Parasitology, vol. 32, no. 3, pp. 725 - 736, 2002.