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Sabaghnia, N. , Janmohammadi, M. , Mohebodini, M.. "GGE-Biplot Analysis of Nano-Titanium Dioxide and Nano-Silica Effects on Sunflower". World Academy of Science, Engineering and Technology, Open Science Index 127, International Journal of Agricultural and Biosystems Engineering (2017), 11(7), 494 - 497.