@article{engindeniz_tuzel_2006,  title={Economic analysis of organic greenhouse lettuce production in Turkey},  volume={63},  ISSN={0103-9016},  url={https://doi.org/10.1590/S0103-90162006000300012},  DOI={10.1590/S0103-90162006000300012},  number={3},  journal={Scientia Agricola},  publisher={Escola Superior de Agricultura "Luiz de Queiroz"},  author={Engindeniz, Sait and Tuzel, Yuksel},  year={2006},  month={May},  pages={285–290} }