Özkay, F., Kıran, S., Kuşvuran, Şebnem, & Ellialtıoğlu, Şeküre Şebnem. (2016). The Effects of Humic Acid Applications on Heavy Metal Stress in Lettuce. Turkish Journal of Agriculture - Food Science and Technology, 4(6), 431–437. https://doi.org/10.24925/turjaf.v4i6.431-437.542