Lanthanum Chloride Catalysed By Expeditious Synthesis of Azlactone Derivatives . Int J Sci Res Sci & Technol [Internet]. 2025 Jan. 31 [cited 2025 Apr. 1];12(1):369-72. Available from: https://ijsrst.com/index.php/home/article/view/IJSRST25121178