K. Muralidharan, C. Thamban, P. Anithakumari, P. Subramanian, C. Palaniswami, and V. Krishnakumar, “Production forecasting of coconut: Variation in number of bearing palms and productivity in selected districts in India”, JPC, vol. 41, no. 3, pp. 314–320, Sep. 2013.