Al-Montaser ZN, Al-Salihi AM, Al-Timime NS, Ibraheem NT. Developing an Empirical Equation for Solar Ultraviolet Radiation Estimation for the Production of Vitamin D Photosynthesis for Selected Provinces in Iraq. IRAQI J ENVIRON SCI [Internet]. 2026 Feb. 1 [cited 2026 Jul. 12];2(1):1-7. Available from: https://ijes.uomustansiriyah.edu.iq/index.php/ijes/article/view/19