P. C. and D. BALASIMHA, “Chlorophyll fluorescence characteristics of arecanut palms affected with yellow leaf disease”, Indian Phytopath., vol. 47, no. 1, pp. 87–88, Jan. 2002, Accessed: Jun. 25, 2026. [Online]. Available: https://epubs.icar.org.in/index.php/IPPJ/article/view/20997