Intrarasaksit, Pisit Vatanasomboon and Kraichat Tantrakarnapa, S. 2017 Jul 17. Uptake of Copper and Zinc in Lettuce (Lactuca sativa L.) Planted in Sida Soil and Lignite Bottom Ash Mixtures. Naresuan University Journal: Science and Technology (NUJST). [Online] 25:3