Negi, S C, J Shekhar, and J P Saini. “Effect of Seed Size and Spacing on Potato (Solanum Tuberosum) Production”. The Indian Journal of Agricultural Sciences 65, no. 4 (May 25, 2012). Accessed October 26, 2025. https://epubs.icar.org.in/index.php/IJAgS/article/view/18226.