Intrarasaksit, Pisit Vatanasomboon and Kraichat Tantrakarnapa, S. (2017). 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), 25(3), 31-42. Retrieved from http://www.journal.nu.ac.th/NUJST/article/view/1893