KULSAWAT, W., P. Nochit, and R. Samran. “STABLE CARBON ISOTOPE FOR EVALUATING SOIL ORGANIC CARBON BETWEEN RICE-CORN ROTATION AND CORN MONOCROPPING”. Suranaree Journal of Science and Technology, vol. 31, no. 4, Oct. 2024, pp. 030208(1-6), doi:10.55766/sujst-2024-04-e03552.