Nourhan A. F. Mashhour (2024) “Using Spirulina Extract as a Natural Bio stimulant to Improve Yield and Fruit Quality of Valencia Orange Trees”, The International Journal of Multiphysics, 18(4), pp. 1417 - 1428. Available at: https://www.themultiphysicsjournal.com/index.php/ijm/article/view/2256 (Accessed: 24June2026).