Sudsa-ard, P., Buntham, P., Buarod, T., & Pantian, S. (2024). Determining the amount of nutrients and pH of soil in maize growing areas using the X-ray fluorescence technique. Journal of Science and Technology CRRU, 3(1), 66–72. retrieved from https://li01.tci-thaijo.org/index.php/jstcrru/article/view/262562