Vasundhara, R., N. B. Prakash, K. S. Anil Kumar, Rajendra Hegde, and S. Dharumarajan. “Soil Fertility Status of Coconut and Arecanut Growing Soils”. Journal of Plantation Crops 49, no. 2 (September 21, 2021): 83–93. Accessed September 23, 2025. https://www.updatepublishing.com/journal/index.php/JPC/article/view/7254.