Khan, A. R., & Mir, S. (2002). PLANT GROWTH STIMULATION OF LIGNITE HUMIC ACIDS. PART-]: EFFECT OF AMMONIUM HUMATE ON SEED COTTON YIELD AND FIBER QUALITY. Biological Sciences - PJSIR, 45(5), 291–294. Retrieved from http://v2.pjsir.org/index.php/biological-sciences/article/view/1820