Arshad, I., Khan, Z. A., Vallejera, C. A. E. and Shah, N. H. (2019) “The Role of Punjab Agricultural Extension Services in Promoting Cotton Cultivation: Case Study”, PSM Biological Research, 4(3), pp. 100–107. Available at: https://www.psmjournals.org.aabms.pk/index.php/biolres/article/view/320 (Accessed: 3November2026).