Choudhury, A TM A, and YM Khanif. “EFFECT OF NITROGEN, COPPER AND MAGNESIUM FERTILIZATION ON YIELD AND NUTRITION OF RICE”. Biological Sciences - PJSIR 45, no. 2 (April 22, 2002): 102–107. Accessed November 22, 2024. https://v2.pjsir.org/index.php/biological-sciences/article/view/1763.