Kamolaxon , H., T. Abbosjon, and S. Nurmatov. “DEVELOPMENT OF A DEVICE PROJECT THAT DETERMINES THE AMOUNT OF ELEMENTS THAT ENSURE SOIL FERTILITY (POTASSIUM, CALCIUM, NITROGEN)”. QO‘QON UNIVERSITETI XABARNOMASI, vol. 14, Mar. 2025, pp. 242-7, doi:10.54613/ku.v14i.1174.