Haque , M. E., M. A. Kashem, and K. T. Osman. “Effect of Chicken Manure on the Growth and Uptake of N, P, and K by Spinach (Spinacia Oleracea L.) Grown in Three Different Soils”. Chittagong University Journal of Biological Sciences, vol. 11, no. 1, July 2024, pp. 98-109, doi:10.3329/cujbs.v11i1.74935.