Mr. Harpal Singh, Dr. Navdeep Singh. “Effects of Green Manure and Biofertilizers on Processing Potato Growth, Productivity, and Chipping Quality at Various Nitrogen Levels”. International Journal of Control and Automation 13, no. 4 (May 17, 2020): 1516 - 1522. Accessed May 6, 2024. http://sersc.org/journals/index.php/IJCA/article/view/37741.