Ultra-Sonicated Synthesis Of 1,8-Dioxo-Octahydroxanthenes Ni Multi-Doped Zro2 Nanocatalyst. Int. J. Environ. Sci. [Internet]. 2024 Dec. 20 [cited 2025 Dec. 5];:797-803. Available from: http://theaspd.com/index.php/ijes/article/view/11913