RAVICHANDRAN, S, and PRAJNESHU PRAJNESHU. “Structural Time-Series Modelling for Describing Trend in Sunflower (Helianthus Annuus) Yield*”. The Indian Journal of Agricultural Sciences, vol. 72, no. 9, June 2014, https://epubs.icar.org.in/index.php/IJAgS/article/view/41064.