Mitrev, Sasa, Ilija Karov, Dusan Spasov, Emilija Kostadinovska, & Biljana Kovacevik. " Idetification of the Causer of Tomato Pith Necrosis in the Republic of Macedonia." Journal of Agriculture and Plant Sciences [Online], 10.1 (2010): pp.9-24. Web. 4 Aug. 2020