Dulja, X., Belegu, M., Bou Dib(Lekocaj), J. and Nikolla, M. 2013. Selecting the Rational Structures of the Usage of TomatoÂ’s Production Factors. European Journal of Sustainable Development. 2, 2 (Jun. 2013), 19. DOI:https://doi.org/10.14207/ejsd.2013.v2n2p19.