Taghvaeefard, N. ., and H. . Sadeghi. “Allelopathic Effect of Pistacia Khinjuk Leaf Extracts on Chenopodium Album, Physalis Alkekengi and Amaranthus Retroflexus”. Agricultural Advances, vol. 3, no. 2, Feb. 2014, pp. 33-37, http://sjournals.com/index.php/aa/article/view/726.