BEG, M.A.A. , QURESID , .M.H., YUSAF , .M. , CHEEMA, S. , KHAN, . I.-U.-H., CHOHAN , .N.A. and BEG, .N. 2022. MICRO-NUTRIENT FORMULATIONS FOR AGRICULTURE Part-H. Copper, Zinc, Manganese and Chromium Preparation. Biological Sciences - PJSIR. 37, 8 (Jun. 2022), 326–329.