Deeksha Singh, et al. “Comparative Performance of Major Potato Varieties under Different Agro-Climatic Zones of Uttar Pradesh”. International Journal of Primary and Secondary Research (IJPSR), vol. 2, no. 2, June 2026, pp. 34-38, https://doi.org/10.59436/ijpsr.v2i2.7.3139-342X.