Samart, S., N. Phakamas, and S. Chutipaijit. “Influence of Nano-Zinc Oxide on Physiological and Productivity Change of indica Rice”. Journal of Advanced Development in Engineering and Science, vol. 5, no. 13, Aug. 2023, pp. 23-29, https://ph03.tci-thaijo.org/index.php/pitjournal/article/view/836.