Abdul Hameed, Muhammad Islam, Abdul Qayyum, Rabia Siddiqui and Umar Draz (2023) “Optimizing cotton productivity: A comprehensive analysis of categorizing factor levels”, Journal of Pure and applied Agriculture, 8(3). Available at: https://ojs.aiou.edu.pk/index.php/jpaa/article/view/1821 (Accessed: 22 July 2024).