KUMAR S, HOODA BK, JAGGI S, SINGH R. Use of dummy variables for investigating structural stability in fertilizer-yield response models*. Indian J Agri Sci [Internet]. 2011 Jan. 5 [cited 2025 Oct. 27];78(2). Available from: https://epubs.icar.org.in/index.php/IJAgS/article/view/4040