B. M. Kumar and T. Kunhamu, “Ecological and historical perspectives of rice cultivation in Kerala: a synthesis”, ORYZA, vol. 58, no. 2, pp. 241–261, Aug. 2021, Accessed: Jun. 04, 2026. [Online]. Available: https://epubs.icar.org.in/index.php/OIJR/article/view/114575