Heidi I.G. Abo-Elnaga, A.A. Mohamed, M.M. El-Fawy and A.M. Amein (2012) “Influence of Certain Animal Manures on Incidence of Stem Canker and Black Scurf Disease on Potato”, Journal of Basic & Applied Sciences, 8(1), pp. 231–237. doi: 10.6000/1927-5129.2012.08.01.35.