Mayasem Abed Naser Al-Jubouri, Ayyub Juma Abdlrhmaam, and Abid Ahmad Al-Ardeeni, “Response of Barley Crop Growth to Concentrations and Number of Sprays of NPK Nano-Compound Fertilizer”, EJABS, vol. 2, no. 4, pp. 25–33, Dec. 2022.