Karanth, Krishna, and P. Vishwanatha. 2021. “A Mild and Efficient Method for Synthesis of Benzimidazoles Using Thallium Nitrate or Lanthanum Nitrate Catalysts”. International Journal of Scientific Research in Chemical Sciences 8 (4):1-4. https://ijsrcs.isroset.org/index.php/j/article/view/97.